static_assert: Allow any string-literal as the message, not just a character
string literal, and adjust the diagnostic code to match. This also causes us
to escape any control characters in the message.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152069 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDeclCXX.cpp b/lib/Parse/ParseDeclCXX.cpp
index 983bd7e..978b2b3 100644
--- a/lib/Parse/ParseDeclCXX.cpp
+++ b/lib/Parse/ParseDeclCXX.cpp
@@ -610,7 +610,7 @@
   if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "", tok::semi))
     return 0;
 
-  if (Tok.isNot(tok::string_literal)) {
+  if (!isTokenStringLiteral()) {
     Diag(Tok, diag::err_expected_string_literal);
     SkipUntil(tok::semi);
     return 0;