[c++1z] Support for u8 character literals.

llvm-svn: 221576
diff --git a/clang/lib/Parse/ParseTentative.cpp b/clang/lib/Parse/ParseTentative.cpp
index 944e887..1f39c255 100644
--- a/clang/lib/Parse/ParseTentative.cpp
+++ b/clang/lib/Parse/ParseTentative.cpp
@@ -892,6 +892,7 @@
   case tok::numeric_constant:
   case tok::char_constant:
   case tok::wide_char_constant:
+  case tok::utf8_char_constant:
   case tok::utf16_char_constant:
   case tok::utf32_char_constant:
   case tok::string_literal: