Add SourceLocations to ObjCClassDecl for the class identifiers referenced by @class.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89170 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclPrinter.cpp b/lib/AST/DeclPrinter.cpp
index 199ed35..645133b 100644
--- a/lib/AST/DeclPrinter.cpp
+++ b/lib/AST/DeclPrinter.cpp
@@ -624,7 +624,7 @@
   for (ObjCClassDecl::iterator I = D->begin(), E = D->end();
        I != E; ++I) {
     if (I != D->begin()) Out << ", ";
-    Out << (*I)->getNameAsString();
+    Out << I->getInterface()->getNameAsString();
   }
 }