chore(deps): update dependency org.jetbrains.kotlin:kotlin-stdlib to v1.6.21

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlin:kotlin-stdlib (source)	1.6.10 -> 1.6.21

---

Release Notes

JetBrains/kotlin

v1.6.21

Changelog

Compiler

• KT-51979 "AssertionError: No modifier list, but modifier has been found by the analyzer" exception on incorrect Java interface override
• KT-51893 Duplicated [OVERRIDE_DEPRECATION] on overridden properties
• KT-51927 Native: The symbol of unexpected type encountered during IR deserialization error when multiple libraries have non-conflicting declarations with the same name
• KT-51843 Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags
• KT-51672 JVM IR: Inline class mangling issue in interface default methods split across multiple modules
• KT-51711 Compiler warning is displayed in case there is 'if' else branch used with elvis
• KT-49317 "IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA" with parameter of suspend type with the default parameter

IDE. Native

• KTIJ-20819 Native debugging support: "Debug is impossible without lldb binaries required by Kotlin/Native" on "Attach to process"

JavaScript

• KT-52010 K/JS IR: both flows execute when using elvis operator
• KT-51973 KJS / IR overridden properties of inherited interface missing
• KT-50504 KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields

Tools. Gradle

• KT-51837 kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.

Tools. Gradle. Multiplatform

• KT-51810 MPP / Gradle: Dependency locking fails with 1.6.20
• KT-51765 com.android.lint in multiplatform project without android target should not trigger warning

Checksums

File	Sha256
kotlin-compiler-1.6.21.zip	632166fed89f3f430482f5aa07f2e20b923b72ef688c8f5a7df3aa1502c6d8ba
kotlin-native-linux-x86_64-1.6.21.tar.gz	af51f6ae244bb19979fbae6dc3afdca7bae42568d6a33f0fa331edd665a611fa
kotlin-native-macos-x86_64-1.6.21.tar.gz	ce74cc3bc874a42e9b912515626c563dee075503d0c3f55c24cd75724986f020
kotlin-native-macos-aarch64-1.6.21.tar.gz	92426f943b4ad18fb37a1b7ef5f2d7d872f67f228e232a34a9890993edf9b4c5
kotlin-native-windows-x86_64-1.6.21.zip	ac520bf2f66197fec1ff6c666432cb908bf49e39b9266dd6979fa6e2c0294206

v1.6.20

Compiler

New Features

• KT-48217 Add an annotation JvmDefaultWithCompatibility to allow generating DefaultImpls classes if -Xjvm-default=all option is used
• KT-49929 [FIR] Support programmatic creation of annotation class instances
• KT-49276 Warn about potential overload resolution change if Range/Progression starts implementing Collection
• KT-47902 Do not propagate method deprecation through overrides
• KT-49857 Require Xcode 13 for building Kotlin/Native compiler
• KT-47701 Support instantiation of annotation classes on Native
• KT-46085 Support experimental parallel compilation of a single module in the JVM backend
• KT-46603 Generate SAM-conversions to Java interfaces extending 'java.io.Serializable' as serializable using java.lang.invoke.LambdaMetafactory

Performance Improvements

• KT-50156 HMPP: Slow frontend/ide performance in OKIO (ExpectActualDeclarationChecker)
• KT-50073 Performance regression in adapted function references
• KT-50076 Performance regression in super call to an interface member in $DefaultImpls
• KT-50080 Performance regression in string template with generic property with primitive upper bound
• KT-50084 Performance regression in concatenation with 'String?'
• KT-50078 Performance regression in for-in-array loop
• KT-50039 Performance regression in inner class constructor call with default parameters
• KT-48784 An anonymous class has fields for variables that are only used in the constructor
• KT-42010 Generate IINC instruction for postfix increment in JVM_IR
• KT-48433 JVM_IR don't generate null check on 'this$0' parameter of inner class constructor
• KT-48435 JVM_IR ConstForLoopBenchmark performance regression
• KT-48507 JVM_IR ForLoopBenchmark regressions
• KT-48640 Performance regression in 'longDownToLoop' benchmarks
• KT-29822 Generate specialized bytecode for loops withIndex over unsigned arrays
• KT-48669 Generate optimizable counter loop for loops over indices of unsigned arrays
• KT-49444 Possible performance degradation with UInt downTo loop
• KT-48944 Possible performance regression with comparison of local KFunctions
• KT-17111 Eliminate redundant store/load instructions when the value stored is simple
• KT-36837 Generate more compact code for for-in-range loop in JVM_IR
• KT-48947 JVM / IR Possible performance regression with string templates
• KT-48931 JVM / IR: Performance degradation with string concatenation
• KT-36654 Generate more compact bytecode for safe call in JVM_IR

Fixes

• KT-24643 Prohibit using a type parameter declared for an extension property inside delegate
• KT-51747 Make KtCallableDeclaration.getContextReceivers default to preserve compatibility
• KT-49658 NI: False negative TYPE_MISMATCH on nullable type with when
• KT-43493 NI: @​BuilderInference prevents compilation error of "Operator '==' cannot be applied to 'Long' and 'Int'"
• KT-51649 Kotlin/Native: reduce binary size of watchosArm32 and iosArm32 targets by limiting inlining of runtime functions
• KT-48626 JVM IR: incorrect behavior for captured for-loop parameter since 1.6.20-dev-723
• KT-51036 JVM / IR: "NullPointerException: Parameter specified as non-null is null" with synchronized and companion object
• KT-51471 Native: incorrect debug information when inheriting suspend fun invoke implementation
• KT-51352 "ClassCastException: class ScopeCoroutine cannot be cast to class Iterable" caused by coroutines and context receivers
• KT-51271 "ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3" with inlining of context function
• KT-47084 JVM IR: "AssertionError: inconsistent parent function for CLASS LAMBDA_IMPL" with tailrec function default parameter nested inline lambda
• KT-30616 Script: "Don't know how to generate outer expression" for top-level variable reference from static context (companion object, enum)
• KT-50520 "NPE: containingDeclaration.ac…lDeclarationType.REGULAR) must not be null" with implicit type on self-referencing lambda in a builder
• KT-51353 IncompatibleClassChangeError: Expected non-static field com.soywiz.korim.color.Colors.BLACK
• KT-48945 JVM IR: special bridge for get is not generated in a Map subclass
• KT-48499 Interface call with an inline/value parameter generates AbstractMethodError after rebuilding the module, but NOT the file.
• KT-49998 JVM: missing default value for annotation parameter of an unsigned type
• KT-49793 JVM: IncompatibleClassChangeError: Expected non-static field when property delegation uses receiver of another delegated property
• KT-51302 Kotlin/Native 1.6.20-M1 compiler fails because of assertion in NativeAnnotationImplementationTransformer
• KT-51148 "AssertionError: At this stage there should be no remaining variables with proper constraints" caused by two type parameters
• KT-50970 Kotlin/Native: use arm instruction set instead of thumb-2 for iosArm32 and watchosArm32 targets
• KT-50843 Kotlin/Native: LLVM constant merge pass does not work for Kotlin constants
• KT-51157 JVM / IR: "IndexOutOfBoundsException: Index: 1, Size: 1" caused by interface hierarchy and UInt method parameter
• KT-50498 Exception after analysing an erroneous lambda
• KT-50258 equals() returns false on the same enum instances if we check it for the second time in when
• KT-51062 Progressions resolve changing warning isn't reported for Java methods
• KT-48544 JVM / IR: "UnsupportedOperationException: Unknown structure of ADAPTER_FOR_CALLABLE_REFERENCE" with callable reference ::arrayOf
• KT-50978 [Native] Error while building static cache: NoSuchElementException at IrTypeInlineClassesSupport.getInlinedClassUnderlyingType(InlineClasses.kt:341)
• KT-50977 [Native] Error while building static cache: IllegalStateException: Class CLASS ENUM_ENTRY is not found at KonanIrlinkerKt.findClass(KonanIrlinker.kt:229)
• KT-50976 [Native] Error while building static cache: IllegalStateException: No descriptor found at DescriptorByIdSignatureFinder.findDescriptorForPublicSignature(DescriptorByIdSignatureFinder.kt:157)
• KT-51040 Type inference fails on 1.6: "Cannot use 'CapturedType(*)' as reified type parameter" with EnumSet and elvis operator
• KT-51080 Line number in mapping for the first instruction is lost
• KT-49526 JVM IR: Function reference with non-denotable intersection type argument is not inlined and is incorrectly approximated
• KT-50399 Error: unexpected variance in super type argument: out @​0
• KT-50649 JVM IR: ClassCastException when returning Result as generic type
• KT-50617 JVM IR: java.lang.IndexOutOfBoundsException "Empty list doesn't contain element at index 0" when class and interface have the same name and extension function is used
• KT-50856 SAM conversion generates invalid bytecode for generics
• KT-45693 False negative INCOMPATIBLE_TYPES with when with generic subject
• KT-49903 JVM IR: InlineOnly optimization leads to behavior change for println with mutating System.out
• KT-51022 Fix error messages for resolution ambiguity with stub types
• KT-51035 PSI2IR: "org.jetbrains.kotlin.psi2ir.generators.ErrorExpressionException: null: KtCallExpression:" caused by recursive call of java function
• KT-50797 Implement fix for false negative UPPER_BOUND_VIOLATED with generic typealias using not all type parameters as arguments for underlying type
• KT-50878 Usage of contextual declarations from third-party library is allowed without -Xcontext-receivers
• KT-49829 Wrong "cast can never succeed" diagnostic with builder inference
• KT-49828 Improve builder inference diagnostics with overload resolution ambiguity
• KT-50989 CCE cause by EmptySubstitutor in ResolutionWithStubTypesChecker
• KT-49729 Implement deprecation warning for private constructors of sealed classes
• KT-49349 Implement deprecation for invalid if as expression in rhs of elvis
• KT-46285 [SEALED_SUPERTYPE_IN_LOCAL_CLASS] Error message isn't adopted to local objects and sealed interfaces
• KT-49002 Allow OptIn marker on override if base class has the same marker
• KT-48899 Report warnings on overrides with wrong types nullability
• KT-49461 Implement prohibitation of access to members of companion of enum class from initializers of entries of this enum
• KT-49754 Kotlin/JS: @​JsExport on enum class reports NON_EXPORTABLE_TYPE warning
• KT-49598 Misleading error message "Using @​JvmRecord is only allowed with -jvm-target 15 and -Xjvm-enable-preview flag enabled"
• KT-44133 Inline classes: class literal in annotation arguments uses underlying type
• KT-47703 ClassCastException: Programmatically created annotation can't hold Array<KClass<*>>
• KT-47549 JVM / IR: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER CONTINUATION_CLASS caused by suspend function inside "fun interface" in another file
• KT-50120 HMPP: False positive [NO_VALUE_FOR_PARAMETER] for expect function usages
• KT-49864 JVM IR: NoSuchMethodError calling default interface method with inline class return type in -Xjvm-default=all mode
• KT-49812 JVM / IR: "java.lang.VerifyError: Bad return type" when using Result type attribute + extension function with same name
• KT-49936 Extension property in a data class with the same name as the constructor parameter leads to incorrect component function being resolved and generated
• KT-48181 "ISE: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER" on creating instance of kotlin.Metadata
• KT-50215 VerifyError caused by missing cast after is check in when
• KT-49977 "Parameter specified as non-null is null" when inline class implements interface method with default parameters
• KT-50385 DUPLICATE_LABEL_IN_WHEN is reported on incorrect branches
• KT-49092 JVM: ArrayIndexOutOfBoundsException on compiling call with if expression and TODO() arguments
• KT-48987 JVM / IR: Smartcast, which never succeed, crashes the compiler
• KT-50277 Invalid bytecode generated for inline lambda in suspend function
• KT-50219 FIR DFA/CFA: no smart cast after null check and assignment
• KT-44561 FIR DFA: extract non-null info from comparison against variable with initial constant value
• KT-44560 FIR DFA: propagate non-null info to original variables in not-null assertion or cast expression
• KT-50278 FIR: accidental resolve to inaccessible value parameter
• KT-47483 JVM IR: "NoSuchElementException: Sequence contains no element matching the predicate" on compiling Array instantiation with TODO
• KT-50304 EXC_BAD_ACCESS at IntrinsicsNative.kt starting coroutine on object with suspend fun as supertype
• KT-49765 JVM: ClassCastException when trying to add object to EmptyList
• KT-46879 "AssertionError: Stack should be spilled before suspension call" with Flow and reified type
• KT-50172 "AssertionError: Not a callable reflection type" on local function reference with the same name as local variable
• KT-49443 JVM IR, Script: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" with constructor call of class that has a top-level extension function call
• KT-50193 Garbage collection is not working the same way after jvm-ir-backend change
• KT-19424 Compilation exception for script with property delegate calling operator invoke on an object
• KT-43995 Script: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" if companion object initializer calls method on list
• KT-47000 Allow graceful migration to -Xjvm-default=all-compatibility by allowing to inherit from interfaces even in the old (-Xjvm-default=disable) mode
• KT-50180 FIR: not enough information to infer type variable for definitely not null type
• KT-50163 FIR: ISE unsupported compile-time value BLOCK on complex annotations
• KT-50171 JVM IR: "UninitializedPropertyAccessException: Parent not initialized: IrVariableImpl" on SAM-converted property setter reference with Double parameter inside lambda
• KT-50140 Internal error on explicit string concatenation of generic type value with 'String' upper bound
• KT-49992 Anonymous object should not have access to private members from supertypes
• KT-49973 Check existing of default error message for all diagnostics
• KT-50019 Property delegated to callable reference: "ISE: Local class should have its name computed in InventNamesForLocalClasses" with -Xno-optimized-callable-references
• KT-49645 JVM / IR: "IllegalStateException: Local class should have its name computed" caused by default suspend function in interface and value class
• KT-50028 Incorrect implicit casts from Unit
• KT-49615 JVM / IR: "Exception during IR lowering" with list of value classes with non-trivial constructor inside suspend lambda
• KT-49127 FIR: smart cast is not performed after comparison
• KT-48708 Incorrect cast from Unit to Int
• KT-48376 FIR: False positive UNITIALIZED_VARIABLE after try/finally with return from try
• KT-48113 FIR: (false) positive EQUALITY_NOT_APPLICABLE for intersection with platform type
• KT-48305 FIR: incorrect raw type cast
• KT-48378 FIR: synthetic accessor lowering should not attempt to modify other files
• KT-48634 FIR: false property-setter-function resolve cycle
• KT-48621 FIR: SyntheticAccessorLowering should not attempt to modify other files for protected JvmField
• KT-48381 Invalid LLVM module: verification failure of createInlineClassInArgumentPosition.kt
• KT-48527 Native: top-level properties in files with @​Test functions are initialized eagerly even if lazy initialization is enabled
• KT-48559 IllegalArgumentException: Unexpected super type argument: * @​ 0 during IR lowering
• KT-48687 IR dump mismatch after deep copy with symbols in IR text test
• KT-44811 [FIR] Exception in body resolve of new contracts
• KT-48363 FIR behaves differently in case of resolution between classifier and top-level property
• KT-48801 "AssertionError: Stack should be spilled before suspension call" with Flow and crossinline
• KT-46389 JVM / IR: "ClassCastException: class IrGetValueImpl cannot be cast to class IrConst" with inheritance of supertypes member functions with similar signatures
• KT-47797 Regression during migration to 1.6 in compiler
• KT-47987 Can't infer a postponed type variable based on callable reference receiver type
• KT-48446 "IllegalStateException: IrErrorType (getErasedUpperBound)" caused by suspend function reference
• KT-48651 Collect intermediate annotations during type expanding
• KT-48754 JVM IR: in EnclosingMethod leads to IncompatibleClassChangeError on Android 5.0
• KT-45034 Use the new type inference for top-level callable references
• KT-49001 OptIn marker should spread from class to its members, taking into account real dispatch receiver type
• KT-49038 Generics are discriminated during callable references resolution (false negative)
• KT-48954 JVM IR: IllegalAccessError when using Java method reference in constructor
• KT-48284 JVM / IR: "IllegalStateException: Function has no body: FUN STATIC_INLINE_CLASS_REPLACEMENT" caused by inline member toString of value class and string interpolation
• KT-49053 JVM / IR: "AssertionError: Unbound symbols not allowed" on inheriting a protected Java method that returns a package private class from a differently-named file
• KT-49106 JVM: infinite recursion with overridden default suspend interface method where override calls super
• KT-45345 FIR DFA: FirDataFlowAnalyzer seems to add wrong type constraints for type parameters
• KT-44513 FIR DFA: extract non-null info from x?.y!!
• KT-44559 FIR DFA: propagate non-null info from not-null assertion (!!)
• KT-49073 FIR: REDUNDANT_MODIFIER and DEPRECATED_MODIFIER_PAIR should be warnings
• KT-46371 FIR: Investigate FunctionType -> ExtensionFunctionType coercion
• KT-49078 FIR: false positive TYPE_VARIANCE_CONFLICT
• KT-47135 FIR: local class references does not compile
• KT-48600 NON_TAIL_RECURSIVE_CALL missing for calls inside lambda
• KT-48602 NON_TAIL_RECURSIVE_CALL missing for calls with explicit dispatch receiver to a singleton
• KT-48982 JVM / IR: KotlinNothingValueException caused by function with local object
• KT-49087 FIR: false positive REPEATED_ANNOTATION
• KT-48648 JVM IR: "AssertionError: Should be primitive or nullable primitive type" with @​JvmField generic property with Number upper bound
• KT-49069 FIR: False positive INAPPLICABLE_JVM_NAME on getter
• KT-49203 JVM IR: "AssertionError: Unbound symbols not allowed" with lateinit var and plusAssign operator convention call
• KT-48993 JVM / IR: "IllegalStateException: Validation failed in file <multi-file facade ...>" using @​JvmMultifileClass and one of the symbols in the file exposes a @​JvmInline value class
• KT-48938 FIR: Investigate how priorities should work in case SAM-conversion + type parameters
• KT-49129 FIR: false positive of INNER_CLASS_OF_GENERIC_THROWABLE_SUBCLASS
• KT-49076 FIR: false positive "An annotation argument must be compile-time constant" on array of imports
• KT-49222 FIR: StackOverflow in MethodSignatureMapper
• KT-49083 FIR erroneously requires default value parameters for override calls when imported from object
• KT-49135 FIR: ambiguity between type alias and function
• KT-49134 FIR makes no difference between lambda with empty parameter list and without explicit parameter list
• KT-49301 FIR: Unresolved reference: for object inherited from inner class
• KT-49070 FIR: ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED with type parameter / class conflict
• KT-49133 FIR: protected java.lang.Throwable constructor is not available
• KT-49407 JVM / IR: "java.lang.VerifyError: Bad local variable type" with "Int.mod" inside "Long.mod" and non-trivial argument
• KT-44975 SUBCLASS_CANT_CALL_COMPANION_PROTECTED_NON_STATIC: confusing error message
• KT-38698 MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED error message: interface is called a "class"
• KT-45001 Confusing warning message "This class can only be used with the compiler argument" for @​OptIn annotation
• KT-49411 JVM / IR: NullPointerException during IR lowering with @​JvmField property in loop range
• KT-49260 FIR: make FirBasedSymbol hierarchy to correspond FirDeclaration hierarchy
• KT-49289 FIR: false positive "return required" for if/else with inlined return in branch
• KT-49316 JVM / IR: "AssertionError: SyntheticAccessorLowering should not attempt to modify other files!" caused by unreachable code which try to modify val from the other package
• KT-45915 NoDescriptorForDeclarationException: Descriptor wasn't found for declaration FUN with circular module dependencies in JPS
• KT-49288 FIR2IR: consider generating all fake override calls properly
• KT-42784 FIR2IR: first create fake overrides, then bind overridden to them
• KT-48816 Kotlin/Native Symbol for public platform.darwin/NSObject|null[100] is unbound
• KT-49372 JVM / IR: Incorrect work of the loop optimization for mutable variable
• KT-49356 Native: UnsupportedOperationException: RETURNABLE_BLOCK caused by nested return with boxing and inline
• KT-49659 JVM IR: Missing value class mangling in SAM wrappers for fun interfaces from different modules
• KT-47101 Incorrect scope for supertypes in companion objects
• KT-49360 Invalid LLVM module: "inlinable function call in a function with debug info must have a !dbg location"
• KT-48430 JVM: ClassCastException with inline class as generic argument for type parameter used in a function type
• KT-49575 IllegalArgumentException: Unhandled intrinsic in ExpressionCodegen with circular module dependencies in JPS
• KT-47669 IR inliner doesn't handle inner class functions referring outer this
• KT-48668 JVM IR: "ISE: Value at CLASS must not be null for CLASS" for modules with a dependency cycle
• KT-49370 JVM / IR: "java.lang.VerifyError: Bad local variable type" with "fun Long.mod" and non-trivial argument
• KT-46744 Memory Leaks in Kotlin daemon
• KT-48806 False-negative USED_AS_EXPRESSION for unreachable catch clauses
• KT-45972 FIR: type is incorrectly resolved to private
• KT-46968 Remove FirCompositeScope from type resolve
• KT-49072 FIR: accidental resolve to private-in-file type
• KT-34822 FIR scopes: deal with nested / inner classes and type parameter priority
• KT-49702 Exception from RENDER_WHEN_MISSING_CASES diagnostic on malformed sealed class inheritor
• KT-49860 [FIR] Add smartcast expression to synthetic subj access
• KT-49836 Inference fails on lambda and adjacent function expressions with receiver
• KT-49832 Inference fails on lambda for function types with extension parameter
• KT-44022 Excessive diagnostics range for DECLARATION_CANT_BE_INLINED
• KT-48690 VERSION_REQUIREMENT_DEPRECATION_ERROR message: use current compiler version instead of language version
• KT-49609 Incorrect grammar in DATA_CLASS_NOT_PROPERTY_PARAMETER error message
• KT-49600 Misspelled error message for non-constructor properties with backing fields in @​JvmRecord class
• KT-49339 Warn about synchronizing on value classes
• KT-49950 Compilation failed: An operation is not implemented: IrBasedTypeParameterDescriptor
• KT-43604 Problem with initialization order
• KT-23890 Default arguments are not transferred from expect generic member functions
• KT-48811 Expect/actual class with default constructor argument values can not be instantiated from a shared source set without passing arguments (with HMPP enabled)
• KT-48106 FIR: incorrect type inference in provideDelegate receiver
• KT-48325 Safe call operator prevents object from being garbage collected before leaving function
• KT-50004 Linking kotlinx.serialization crashes on Native and JS IR backends
• KT-49311 Missing FIR checker for unresolved references in import statement
• KT-48104 FIR does not see NotNull/Nullable annotations on type arguments
• KT-46812 [FIR] Make FIR diagnostics not related to Diagnostics from FE 1.0
• KT-37374 [FIR] Add CheckInfixModifier resolution stage
• KT-38351 FIR: Support CheckOperatorModifier resolution stage
• KT-39614 [FIR] Fix building CFG for different candidates of plus assign call
• KT-40197 [FIR] Strange Behaviour of Type Arguments
• KT-40362 [FIR] Match type arguments with type parameters of corresponding qualifier
• KT-40375 FIR: No transformation implicit type -> error type for function value parameters
• KT-40585 [FIR] Incorrect type for 1/1.0
• KT-42525 [FIR] Incorrect IR produced for java.lang.Byte.MAX_VALUE
• KT-43359 FIR: Check applicability type for callable reference with unbound receiver
• KT-43378 FIR: Support or prohibit via call checker callable references to member extensions
• KT-43289 FIR: Correctly load irrelevant override for special built-ins
• KT-44558 Annotation arguments const expr support is missing in FIR
• KT-45223 [FIR] Ambiguity between explicit and synthetic removeAt
• KT-42215 FIR: callable reference resolution with type constraints at call-sites
• KT-45520 FIR: NONE_APPLICABLE for unsafe call to function with overloads instead of UNSAFE_CALL
• KT-46410 [FIR] Transform of FirAugmentedArraySetCall leaves erroneous nodes in control flow graph
• KT-46421 FIR: Investigate builder-inference cases
• KT-43948 FIR: hidden unresolved callable reference
• KT-46558 FIR DFA: run once contract is not considered when analyzing lambda
• KT-47125 FIR: Do not avoid trivial constraints if they aren't from upper bounds
• KT-43691 FIR: false positive VARIABLE_INITIALIZER_IS_REDUNDANT with usage in try...finally
• KT-37311 [FIR] Support inference of callable references with type variable as expected type
• KT-31972 Error type encountered: org.jetbrains.kotlin.types.ErrorUtils$UninferredParameterTypeConstructor@1f5b38c (ErrorType).
• KT-48761 Report NO_TAIL_CALLS_FOUND on 'tailrec' modifier, not on the whole function header
• KT-47647 NI: Function reference to Java static method can't compile if passed directly as KFunction1 parameter
• KT-46995 Fix setters implicit types only resolved on full body resolve
• KT-46359 Kotlin 1.5 lambda is not Java-serializable by default
• KT-49282 FIR: suspend conversion does not work inside suspend lambda
• KT-48953 FIR: implement diagnostic DELEGATE_USES_EXTENSION_PROPERTY_TYPE_PARAMETER
• KT-38813 FIR: Report INSTANCE_ACCESS_BEFORE_SUPER_CALL diagnostic on receiver usages in secondary constructors headers
• KT-49657 FIR: accidental override with get:JvmName
• KT-49655 FIR: smart cast is not performed after update of var to not-null value in branch

Docs & Examples

• KT-51086 [Docs] [Build Tools] Allow to configure additional jvm arguments for 'KaptWithoutKotlincTask`
• KT-50563 [Docs] [Build Tools] Deprecate kotlin.experimental.coroutines Gradle DSL option and kotlin.coroutines property
• KT-50580 [Docs] [Kotlin/Native] Support instantiation of annotation classes on Native
• KT-50874 [Docs] [Language] Add ability to specify generic type parameters as not-null
• KT-50564 [Docs] [K/JS] Ensure that @​AfterTest is invoked after the @​Test function completes for asynchronous tests

IDE

New Features

• KTIJ-20169 Link to What's new in a notification about new Kotlin version

Performance Improvements

• KTIJ-20568 Optimize SubpackagesIndexService#hasSubpackages

Fixes

• KTIJ-13020 New compiler settings are applied only after the project is reloaded
• KTIJ-21154 StackOverflowError on Companion.extractPotentiallyFixableTypesForExpectedType that causes "Syntax highlighting has been temporarily turned off"
• KTIJ-20129 Load "@​NotNull T" types from libraries as definitely non-nullable if any module in project loads such types as definitely non-nullable
• KTIJ-9793 UAST: KotlinAbstractUElement.equals fails for psi-less elements
• KTIJ-16203 UAST: Annotating assignment expression sometimes leads to UnknownKotlinExpression
• KTIJ-18720 UAST: @​Deprecated(level=DeprecationLevel.HIDDEN) makes method visibility be dropped
• KTIJ-18039 @​Deprecated(level=HIDDEN) elements return false for isDeprecated()
• KTIJ-18716 KotlinUMethodWithFakeLightDelegate.hasAnnotation() doesn't find annotations
• KTIJ-20220 Kotlin plugin crashes very often
• KTIJ-20308 Syntax highlighting is temporary suspended for file ... due to internal error
• KTIJ-6085 Exception Incorrect CachedValue... with KtUltraLightMethodForSourceDeclaration
• KTIJ-18977 Do not show warning Outdated bundled kotlin compiler if there are no compatible plugin with newer compiler
• KTIJ-20253 Consider supporting special highlighting for definitely non-null types
• KT-42194 OOME: Java heap space from incremental compilation
• KTIJ-13019 "Add '-Xopt-in=kotlin.io.path.ExperimentalPathApi' to module untitled1 compiler arguments" only works until the project is reloaded

IDE. Completion

• KTIJ-20095 Optimize FilterOutKotlinSourceFilesScope#contains
• KTIJ-16250 Completion of override with return type annotated with TYPE_USE-targeted annotation suggests two duplicate entries

IDE. Debugger

• KTIJ-20716 JVM Debugger in common code can't get JVM-specific view on common code and fails
• KTIJ-18562 JVM debugger: coroutineContext.job causes "Failed to generate expression: KtNameReferenceExpression"
• KTIJ-20019 MPP Debugger: NSFE “Field not found” on accessing property with explicit getter from common code in Evaluate expression/Watcher
• KTIJ-19990 MPP Debugger: Evaluate expression for some stdlib in common source set fails with Method threw 'java.lang.ClassNotFoundException' exception.
• KTIJ-20929 MPP Debugger: in a project with single JVM target evaluation of expect function fails with 'NoSuchMethodError' exception in common context
• KTIJ-20956 Debugger: coroutine debugger fails to load sometimes
• KTIJ-20775 MPP Debugger: Evaluate expression for actual typealiases in jvm source set fails with Method threw 'java.lang.ClassNotFoundException' exception.
• KTIJ-20712 MPP Debugger: evaluator fails when evaluating expect function
• KTIJ-19344 K/N debugger shows all types as ObjHeader in variable view.

IDE. Gradle Integration

• KTIJ-20097 HMPP+Android Project that depends on pure Android Lib fails to import in IDEA
• KTIJ-20756 MPP targeting Android and JVM reports 'The feature "multi platform projects" is experimental and should be enabled explicitly'
• KTIJ-20745 Gradle: NSEE “Key main is missing in the map.” on project import in AS 212 + Kotlin 1.6.20
• KT-47570 MPP, IDE: kotlin-test-common leaks into dependencies of platform-specific source sets
• KTIJ-19541 IDE: Kotlin Facets aren't created for Gradle projects added via includeBuild
• KT-48882 MPP IDE import: Failing cinterop Gradle tasks shall not fail import
• KTIJ-18135 MPP, IDE: False positive "No value passed for parameter" in CommonTest when expect declaration has default value and actual does not

IDE. Inspections and Intentions

New Features

• KTIJ-12437 Add inspection to detect redundant (obsolete, unused) @​OptIn annotations
• KTIJ-15780 Add quickfix for migration of Experimental -> RequiresOptIn
• KTIJ-18865 Provide quick fixes for OptIn markers on forbidden targets
• KTIJ-18439 Make suggestions for applying opt-in quickfixes more distinct
• KTIJ-19985 Provide quickfix for SAFE_CALL_WILL_CHANGE_NULLABILITY diagnostic

Fixes

• KTIJ-20550 False positives in "Unnecessary '@​OptIn' annotation" inspection
• KTIJ-20993 Quick-fix for NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS leads to unreachable code
• KTIJ-20557 Quick fix to add Any as an upper bound for type parameter to make it non-nullable
• KTIJ-20827 Process type mismatch compiler warnings to provide a corresponding quick fix
• KTIJ-12578 "Make abstract" quick fix for missing abstract members implementations could warn of potentially broken inheritance
• KTIJ-20425 Quick fix to replace @NotNull parameter type T with a definitely non-nullable type T & Any
• KTIJ-19997 Inspection "Possibly blocking call in non-blocking context could lead to thread starvation" suggests "Wrap call in 'withContext'" resulting in red code
• KTIJ-18291 Quickfix "Add @​OptIn() annotation" adds the annotation to primary constructor when invoked on primary constructor parameter
• KTIJ-19512 Implement IDE support for new rules of deprecation inheritance
• KTIJ-20156 Exception when applying 'Convert to with'
• KTIJ-20290 Forbid "move to constructor" intention if class contains secondary constructor
• KTIJ-20288 Forbid "move to constructor" intention for actual classes with actual constructor
• KT-49736 Introduce import alias fails when qualifier is unresolved
• KTIJ-18743 "Redundant nullable return type" applied on actual method doesn't change the signature of expect
• KTIJ-12343 Inspection "Sealed sub-class has no state and no overridden equals" is applied incorrectly to expect/actual declarations of sealed classes with nested subclasses
• KTIJ-19406 The "Add @​OptIn(...)" quick fix does not shorten the annotation when adding an argument to the existing annotation
• KTIJ-12351 generate equals & hashCode() by identity intention generates incompilable code for multiplatform project modules
• KTIJ-13227 Forbid "move property to constructor" for actual classes with actual constructor having at least one parameter already
• KTIJ-11328 No quick fixes are suggested for annotation from experimental API used with file target
• KTIJ-14427 Meta-annotation value isn't updated for all the corresponding parts of a multiplatform annotation
• KTIJ-19735 NSME org.jetbrains.kotlin.idea.quickfix.KotlinSingleIntentionActionFactory org.jetbrains.kotlin.idea.quickfix.RemoveModifierFix on IJ212 + Kotlin master

IDE. Navigation

• KTIJ-18145 IDE freeze on 'Show Usage'

IDE. Refactorings. Extract Function

• KTIJ-10026 Refactor / Extract function: Adds unnecessary nullability annotations for parameters coming from NotNull or Nullable Java methods
• KTIJ-15823 Refactor / Extract Function: resulted declaration gets no @​OptIn from original function when necessary

IDE. Refactorings. Move

• KTIJ-5661 [Tests] MoveRefactoring: Fix ignored incorrect tests of crossmodule declaration moving

IDE. Wizards

• KTIJ-19232 New project wizard: delete MPP Mobile-Library and Application templates
• KTIJ-20878 Unable to create project with Kotlin Project Wizard when JDK 17 is used.
• KTIJ-20244 Compose MPP project from wizard requires minCompileSdk=31
• KTIJ-20781 Update kotlin-wrappers version in wizard

JS. Tools

• KT-47387 KJS: Support Apple Silicon for node distrib download

JavaScript

New Features

• KT-44494 KJS / IR: Allow enum classes to be exported
• KT-43224 KJS: Allow using inline classes in external types
• KT-35100 Make Char inline class in K/JS
• KT-42936 KJS IR: Support js-code test directives similar to legacy
• KT-47525 KJS / IR: Support protected members in d.ts generation
• KT-50110 KJS / IR: Enable properties lazy initialization by default

Performance Improvements

• KT-46443 KJS / IR: Improve CharArray and Char performance
• KT-45665 KJS / IR: equals on inline value classes is boxed
• KT-43644 KJS / IR: Avoid creating lambda classes

Fixes

• KT-51685 KJS / IR: TypeError: collection.iterator_jk1svi_k$ regression in Kotlin 1.6.20-RC2
• KT-51523 KJS IR: "Uncaught TypeError: a._get_length__2347802853_w7ahp7_k$ is not a function"
• KT-51700 KJS / IR: Compiler uses wrong function with List
• KT-51222 KJS / IR: "RangeError: Maximum call stack size exceeded": Default function overloads marked with @​JsExport are broken
• KT-45054 KJS: Export secondary constructors as class static methods
• KT-37916 KJS: .d.ts generation not working for enum classes
• KT-48199 KJS / IR: Improve error message for linkage problems
• KT-51030 KJS / IR: internal class that implements public interface is missing getters
• KT-45434 KJS: "WRONG_EXPORTED_DECLARATION" when using JsExport on interfaces
• KT-50934 KJS / IR: Re-export all JS-exports from the main module for the multi-module mode
• KT-45620 KJS / IR: Remainder of division of Int.MIN_VALUE by -1 is negative zero (-0)
• KT-44981 KJS / IR crashes on kotlin.js.js calls with complex constexpr
• KT-41964 KJS IR: Reference to local variable and parameter from js fun could be broken unexpectedly
• KT-50682 Kotlin/JS: IR + IC: TypeError "Cannot read properties of undefined" when properties from different sources refer one another in initializers
• KT-50175 Kotlin/JS, IR: with incremental compilation top level properties initialization is not lazy
• KT-40236 KJS: IR. Invalid override for external field with @​JsName
• KT-46525 KJS / IR: Generate context-dependent names for lambdas and object expressions
• KT-49779 KJS / IR: Exported abstract class implementing interface not export interfaces member in d.ts
• KT-49773 KJS / IR: Exported enum implementing interface
• KT-41912 KJS / IR: generates invalid defineProperty methods for class hierarchies
• KT-46225 KJS IR: tailrec function with capturing lambda in default parameter value leads to UninitializedPropertyAccessException at compile time
• KT-50528 Kotlin/JS: IR + IC: TypeError: "combined.get_icpjjy_k$ is not a function" fo

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