Rename GRState to ProgramState, and cleanup some code formatting along the way.

llvm-svn: 137665
diff --git a/clang/lib/StaticAnalyzer/Checkers/PointerArithChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/PointerArithChecker.cpp
index 7c21acc..3f94384 100644
--- a/clang/lib/StaticAnalyzer/Checkers/PointerArithChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/PointerArithChecker.cpp
@@ -36,7 +36,7 @@
   if (B->getOpcode() != BO_Sub && B->getOpcode() != BO_Add)
     return;
 
-  const GRState *state = C.getState();
+  const ProgramState *state = C.getState();
   SVal LV = state->getSVal(B->getLHS());
   SVal RV = state->getSVal(B->getRHS());