[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/GRBlockCounter.cpp b/lib/GR/GRBlockCounter.cpp
index 6a19917..8a026b1 100644
--- a/lib/GR/GRBlockCounter.cpp
+++ b/lib/GR/GRBlockCounter.cpp
@@ -17,6 +17,7 @@
 #include "llvm/ADT/ImmutableMap.h"
 
 using namespace clang;
+using namespace GR;
 
 namespace {