See issue https://github.com/llvm/llvm-project/issues/62594
This code does not work on win32:
auto lstatic = []() static { return 0; };
int (*f2)(void) = lstatic;
Since a calling convention such as CC_X86ThisCall can rightly interfere with the implicit pointer to function conversion if erroneously marked on a static function, the fix entails checking the 'static' specifier on the lambda declarator prior to assigning it a calling convention of an non-static member (which pre-c++23 made sense).
