[Bug]: Error "Stack too deep" when running forge test without --via-ir

[DamirS09]

Describe the bug

When running forge test on the v4-core project, the compiler throws a "Stack too deep" error. The error message suggests using --via-ir or enabling the optimizer to bypass this issue. Running the test with the --via-ir flag resolves the issue, but this should ideally work without needing additional flags.

Expected Behavior

The forge test command should run successfully without requiring the --via-ir flag, and all tests should pass without any "Stack too deep" compiler errors.

To Reproduce

forge test
[⠆] Compiling...
[⠔] Compiling 125 files with Solc 0.8.26
[⠒] Solc 0.8.26 finished in 3.17s
Error:
Compiler run failed:
Error: Compiler error (C:\Users\circleci\project\libsolidity\codegen\LValue.cpp:51):Stack too deep. Try compiling with --via-ir (cli) or the equivalent viaIR: true (standard JSON) while enabling the optimizer. Otherwise, try removing local variables.
CompilerError: Stack too deep. Try compiling with --via-ir (cli) or the equivalent viaIR: true (standard JSON) while enabling the optimizer. Otherwise, try removing local variables.
--> lib/v4-core/src/PoolManager.sol:179:36:
|
179 | (callerDelta, hookDelta) = key.hooks.afterModifyLiquidity(key, params, callerDelta, feesAccrued, hookData);
| ^^^

Additional context

No response

[linear]

PROTO-573 [Bug]: Error "Stack too deep" when running forge test without --via-ir

[NikitaZ]

This is fixed now with #872