Simplified code for deprecated attribute wih message a little.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@115856 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index d54a858..fa1ce7a 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -59,7 +59,7 @@
   // See if the decl is deprecated.
   if (const DeprecatedAttr *DA = D->getAttr<DeprecatedAttr>()) {
     const char *Message = 
-      DA->getMessage().empty() ? "" : DA->getMessage().data();
+      DA->getMessage().empty() ? 0 : DA->getMessage().data();
     EmitDeprecationWarning(D, Message, Loc);
   }