Minor refactoring of foreach's semantics code per Chris's suggetion.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45604 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaExprObjC.cpp b/Sema/SemaExprObjC.cpp
index e976876..a82f6fb 100644
--- a/Sema/SemaExprObjC.cpp
+++ b/Sema/SemaExprObjC.cpp
@@ -217,7 +217,7 @@
           return true;
     }
   } else {
-    bool receiverIsQualId = dyn_cast<ObjcQualifiedIdType>(receiverType) != 0;
+    bool receiverIsQualId = isa<ObjcQualifiedIdType>(receiverType);
     // FIXME (snaroff): checking in this code from Patrick. Needs to be
     // revisited. how do we get the ClassDecl from the receiver expression?
     if (!receiverIsQualId)