[compiler] Visit nested scopes in pruned scopes in PromoteUsedTemporaries

compiler/packages/babel-plugin-react-compiler/src/ReactiveScopes/PromoteUsedTemporaries.ts

@@ -138,6 +138,7 @@ class CollectPromotableTemporaries extends ReactiveFunctionVisitor<State> {
         usedOutsideScope: false,
       });
     }
+    this.visitBlock(scopeBlock.instructions, state);
   }
 
   override visitScope(scopeBlock: ReactiveScopeBlock, state: State): void {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/renaming-jsx-tag-lowercase.expect.md

@@ -0,0 +1,85 @@
+
+## Input
+
+```javascript
+import {Stringify, identity, useIdentity} from 'shared-runtime';
+
+function Foo({}) {
+  const x = {};
+  const y = {};
+  useIdentity(0);
+  return (
+    <>
+      <Stringify value={identity(y)} />
+      <Stringify value={identity(x)} />
+    </>
+  );
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Foo,
+  params: [{}],
+};
+
+```
+
+## Code
+
+```javascript
+import { c as _c } from "react/compiler-runtime";
+import { Stringify, identity, useIdentity } from "shared-runtime";
+
+function Foo(t0) {
+  const $ = _c(9);
+  const x = {};
+  const y = {};
+  useIdentity(0);
+
+  const T0 = Stringify;
+  const t1 = identity(y);
+  let t2;
+  if ($[0] !== T0 || $[1] !== t1) {
+    t2 = <T0 value={t1} />;
+    $[0] = T0;
+    $[1] = t1;
+    $[2] = t2;
+  } else {
+    t2 = $[2];
+  }
+  const T1 = Stringify;
+  const t3 = identity(x);
+  let t4;
+  if ($[3] !== T1 || $[4] !== t3) {
+    t4 = <T1 value={t3} />;
+    $[3] = T1;
+    $[4] = t3;
+    $[5] = t4;
+  } else {
+    t4 = $[5];
+  }
+  let t5;
+  if ($[6] !== t2 || $[7] !== t4) {
+    t5 = (
+      <>
+        {t2}
+        {t4}
+      </>
+    );
+    $[6] = t2;
+    $[7] = t4;
+    $[8] = t5;
+  } else {
+    t5 = $[8];
+  }
+  return t5;
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Foo,
+  params: [{}],
+};
+
+```
+
+### Eval output
+(kind: ok) <div>{"value":{}}</div><div>{"value":{}}</div>

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/renaming-jsx-tag-lowercase.tsx

@@ -0,0 +1,18 @@
+import {Stringify, identity, useIdentity} from 'shared-runtime';
+
+function Foo({}) {
+  const x = {};
+  const y = {};
+  useIdentity(0);
+  return (
+    <>
+      <Stringify value={identity(y)} />
+      <Stringify value={identity(x)} />
+    </>
+  );
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Foo,
+  params: [{}],
+};