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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137665 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Checkers/DereferenceChecker.cpp b/lib/StaticAnalyzer/Checkers/DereferenceChecker.cpp
index 3f3cacc..acfb094 100644
--- a/lib/StaticAnalyzer/Checkers/DereferenceChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/DereferenceChecker.cpp
@@ -89,8 +89,8 @@
     return;
 
   const Stmt *S = C.getStmt();
-  const GRState *state = C.getState();
-  const GRState *notNullState, *nullState;
+  const ProgramState *state = C.getState();
+  const ProgramState *notNullState, *nullState;
   llvm::tie(notNullState, nullState) = state->assume(location);
 
   // The explicit NULL case.