don't poke at TranslationUnit directly


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67900 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/clang-cc/AnalysisConsumer.cpp b/tools/clang-cc/AnalysisConsumer.cpp
index f19ff17..4594a71 100644
--- a/tools/clang-cc/AnalysisConsumer.cpp
+++ b/tools/clang-cc/AnalysisConsumer.cpp
@@ -460,10 +460,14 @@
       (*I)(mgr);  
   }
 
-  if (!ObjCImplementationActions.empty())
-    for (TranslationUnit::iterator I = TU.begin(), E = TU.end(); I!=E; ++I)
+  if (!ObjCImplementationActions.empty()) {
+    TranslationUnitDecl *TUD = TU.getContext().getTranslationUnitDecl();
+    
+    for (DeclContext::decl_iterator I = TUD->decls_begin(),E = TUD->decls_end();
+         I != E; ++I)
       if (ObjCImplementationDecl* ID = dyn_cast<ObjCImplementationDecl>(*I))
         HandleCode(ID, 0, ObjCImplementationActions);
+  }
   
   // Delete the PathDiagnosticClient here just in case the AnalysisConsumer
   // object doesn't get released.  This will cause any side-effects in the