Fixup rewrite of ivars accessed via an explicit object
in a function. Fixes radar 7522803.

llvm-svn: 93159
diff --git a/clang/lib/Frontend/RewriteObjC.cpp b/clang/lib/Frontend/RewriteObjC.cpp
index 3000d77..28f79aa 100644
--- a/clang/lib/Frontend/RewriteObjC.cpp
+++ b/clang/lib/Frontend/RewriteObjC.cpp
@@ -1235,8 +1235,9 @@
 
     // Explicit ivar refs need to have a cast inserted.
     // FIXME: consider sharing some of this code with the code above.
-    if (const PointerType *pType = IV->getBase()->getType()->getAs<PointerType>()) {
-      ObjCInterfaceType *iFaceDecl = dyn_cast<ObjCInterfaceType>(pType->getPointeeType());
+    if (IV->isArrow()) {
+      ObjCInterfaceType *iFaceDecl =
+        dyn_cast<ObjCInterfaceType>(BaseExpr->getType()->getPointeeType());
       // lookup which class implements the instance variable.
       ObjCInterfaceDecl *clsDeclared = 0;
       iFaceDecl->getDecl()->lookupInstanceVariable(D->getIdentifier(),