Don't warn for an unused label if it has 'unused' attribute. Fixes rdar://8483139.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114954 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseStmt.cpp b/lib/Parse/ParseStmt.cpp
index 5ebee67..d4523d2 100644
--- a/lib/Parse/ParseStmt.cpp
+++ b/lib/Parse/ParseStmt.cpp
@@ -241,10 +241,9 @@
   if (SubStmt.isInvalid())
     SubStmt = Actions.ActOnNullStmt(ColonLoc);
 
-  // FIXME: use attributes?
   return Actions.ActOnLabelStmt(IdentTok.getLocation(),
                                 IdentTok.getIdentifierInfo(),
-                                ColonLoc, SubStmt.get());
+                                ColonLoc, SubStmt.get(), AttrList.take());
 }
 
 /// ParseCaseStatement