cmake HAS_CLANG_TIDY_HEADERS examples

Lewuathe/mlir-hello thirdparty/llvm-project/libcxx/test/tools/clang_tidy_checks/CMakeLists.txt :56

try_compile(HAS_CLANG_TIDY_HEADERS
  "${CMAKE_CURRENT_BINARY_DIR}"
  "${CMAKE_CURRENT_BINARY_DIR}/test.cpp"
   LINK_LIBRARIES clangTidy)