Revert r90546.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90551 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Analysis/PathSensitive/Checker.h

@@ -126,7 +126,8 @@ public:
   
   void addTransition(const GRState *state) {
     assert(state);
-    if (state != B.GetState(Pred))
+    if (state != getState() || 
+        (state && state != B.GetState(Pred)))
       GenerateNode(state, true);
     else
       Dst.Add(Pred);