[clang] [C++20][Coroutines] Lambda-coroutine with operator new in promise_type (PR #84193)

[Chuanqi Xu via cfe-commits]

ChuanqiXu9 wrote:

Hi Andreas, thanks for looking into this. I am still confused about whether or not your new branch can fix the crash or not.

For the question about the crash itself, I don't have any insight though, I feel like this is a defect in the code generator. I didn't understand why mark a variable as referenced or not by the frontend may affect the code generation.

https://github.com/llvm/llvm-project/pull/84193