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

llvm-svn: 122423
diff --git a/clang/lib/GR/Checkers/DivZeroChecker.cpp b/clang/lib/GR/Checkers/DivZeroChecker.cpp
index e76d846..a4cb1a4 100644
--- a/clang/lib/GR/Checkers/DivZeroChecker.cpp
+++ b/clang/lib/GR/Checkers/DivZeroChecker.cpp
@@ -17,6 +17,7 @@
 #include "clang/GR/PathSensitive/CheckerVisitor.h"
 
 using namespace clang;
+using namespace GR;
 
 namespace {
 class DivZeroChecker : public CheckerVisitor<DivZeroChecker> {
@@ -28,7 +29,7 @@
 };  
 } // end anonymous namespace
 
-void clang::RegisterDivZeroChecker(GRExprEngine &Eng) {
+void GR::RegisterDivZeroChecker(GRExprEngine &Eng) {
   Eng.registerCheck(new DivZeroChecker());
 }