[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/UndefBranchChecker.cpp b/lib/GR/Checkers/UndefBranchChecker.cpp
index ebeb7a4..fa3dfa5 100644
--- a/lib/GR/Checkers/UndefBranchChecker.cpp
+++ b/lib/GR/Checkers/UndefBranchChecker.cpp
@@ -17,6 +17,7 @@
 #include "clang/GR/PathSensitive/Checker.h"
 
 using namespace clang;
+using namespace GR;
 
 namespace {
 
@@ -55,7 +56,7 @@
 
 }
 
-void clang::RegisterUndefBranchChecker(GRExprEngine &Eng) {
+void GR::RegisterUndefBranchChecker(GRExprEngine &Eng) {
   Eng.registerCheck(new UndefBranchChecker());
 }