[analyzer] Refactoring: Move stuff into namespace 'GR'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122423 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/GR/GRState.cpp b/lib/GR/GRState.cpp
index 164cd8c..993fa1a 100644
--- a/lib/GR/GRState.cpp
+++ b/lib/GR/GRState.cpp
@@ -19,6 +19,7 @@
 #include "llvm/Support/raw_ostream.h"
 
 using namespace clang;
+using namespace GR;
 
 // Give the vtable for ConstraintManager somewhere to live.
 // FIXME: Move this elsewhere.