Removing some more unnecessary manual quotes from attribute diagnostics.

llvm-svn: 198392
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index cbe1974..7e9cea6 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -7423,7 +7423,7 @@
 
   if (mismatch)
     Diag(ArgumentExpr->getExprLoc(), diag::warn_type_safety_type_mismatch)
-        << ArgumentType << ArgumentKind->getName()
+        << ArgumentType << ArgumentKind
         << TypeInfo.LayoutCompatible << RequiredType
         << ArgumentExpr->getSourceRange()
         << TypeTagExpr->getSourceRange();