cmake COMPILER_RT_HAS_WD4800_FLAG examples

Lewuathe/mlir-hello thirdparty/llvm-project/compiler-rt/cmake/config-ix.cmake :163 

check_cxx_compiler_flag(/wd4800 COMPILER_RT_HAS_WD4800_FLAG)

trailofbits/polytracker polytracker/src/compiler-rt/cmake/config-ix.cmake :119 

check_cxx_compiler_flag(/wd4800 COMPILER_RT_HAS_WD4800_FLAG)

CTSRD-CHERI/cheribsd contrib/subrepo-cheri-compiler-rt/cmake/config-ix.cmake :140 

check_cxx_compiler_flag(/wd4800 COMPILER_RT_HAS_WD4800_FLAG)