Do not pass -flto dependent flags to clang-tidy.

// clang-tidy doesn't recognize every flag that clang does. This is unlikely to

// be a complete list, but we can populate this with the ones we know to avoid

// issues with clang-diagnostic-unused-command-line-argument.

// b/111885396: -flto affected header include directory; -fsanitize needs -flto.

// b/111885396: -flto affected header include directory;

// -fsanitize and -fwhole-program-vtables need -flto.

var ClangTidyUnknownCflags = sorted([]string{

	"-Wa,%",

	"-flto",

	"-fsanitize=%",

	"-fwhole-program-vtables",

})

func init() {