Clang always behaves as if that's passed, so just ignore the flag.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@279869
91177308-0d34-0410-b5e6-
96231b3b80d8
def _SLASH_RTC : CLIgnoredJoined<"RTC">;
def _SLASH_sdl : CLIgnoredFlag<"sdl">;
def _SLASH_sdl_ : CLIgnoredFlag<"sdl-">;
+def _SLASH_utf8 : CLIgnoredFlag<"utf-8">;
def _SLASH_w : CLIgnoredJoined<"w">;
def _SLASH_Zc_auto : CLIgnoredFlag<"Zc:auto">;
def _SLASH_Zc_forScope : CLIgnoredFlag<"Zc:forScope">;
// RUN: /sdl \
// RUN: /sdl- \
// RUN: /source-charset:utf-8 \
+// RUN: /utf-8 \
// RUN: /vmg \
// RUN: /volatile:iso \
// RUN: /w12345 \