[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/UnreachableCodeChecker.cpp b/lib/GR/Checkers/UnreachableCodeChecker.cpp
index 5f8b229..0ab97c2 100644
--- a/lib/GR/Checkers/UnreachableCodeChecker.cpp
+++ b/lib/GR/Checkers/UnreachableCodeChecker.cpp
@@ -29,6 +29,7 @@
 #define DEFAULT_CFGBLOCKS 256
 
 using namespace clang;
+using namespace GR;
 
 namespace {
 class UnreachableCodeChecker : public Checker {
@@ -53,7 +54,7 @@
   return &x;
 }
 
-void clang::RegisterUnreachableCodeChecker(GRExprEngine &Eng) {
+void GR::RegisterUnreachableCodeChecker(GRExprEngine &Eng) {
   Eng.registerCheck(new UnreachableCodeChecker());
 }