llvm-project

21041c92 - [NFCI][lldb][test] Fix mismatched C/C++ substitutions (#165773)

[NFCI][lldb][test] Fix mismatched C/C++ substitutions (#165773) Most of the cases were where a C++ file was being compiled with the C substitution. There were a few cases of the opposite though. LLDB seems to be the only real culprit in the LLVM codebase for these mismatches. Rest of the LLVM presumably sticks at least language-specific options in the common substitutions making the mistakes immediately apparent. I found these by using Clang frontend configuration files containing language-specific options for both C and C++ (e.g. `-std=c2y` and `-std=c++26`).