[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/Checkers/PointerArithChecker.cpp b/lib/GR/Checkers/PointerArithChecker.cpp
index 0517140..485144a 100644
--- a/lib/GR/Checkers/PointerArithChecker.cpp
+++ b/lib/GR/Checkers/PointerArithChecker.cpp
@@ -17,6 +17,7 @@
 #include "clang/GR/PathSensitive/CheckerVisitor.h"
 
 using namespace clang;
+using namespace GR;
 
 namespace {
 class PointerArithChecker 
@@ -66,6 +67,6 @@
   }
 }
 
-void clang::RegisterPointerArithChecker(GRExprEngine &Eng) {
+void GR::RegisterPointerArithChecker(GRExprEngine &Eng) {
   Eng.registerCheck(new PointerArithChecker());
 }