[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/IdempotentOperationChecker.cpp b/lib/GR/Checkers/IdempotentOperationChecker.cpp
index e6f0e5d..b28edc3 100644
--- a/lib/GR/Checkers/IdempotentOperationChecker.cpp
+++ b/lib/GR/Checkers/IdempotentOperationChecker.cpp
@@ -58,6 +58,7 @@
 #include <deque>
 
 using namespace clang;
+using namespace GR;
 
 namespace {
 class IdempotentOperationChecker
@@ -129,7 +130,7 @@
   return &x;
 }
 
-void clang::RegisterIdempotentOperationChecker(GRExprEngine &Eng) {
+void GR::RegisterIdempotentOperationChecker(GRExprEngine &Eng) {
   Eng.registerCheck(new IdempotentOperationChecker());
 }