Rename static analyzer namespace 'GR' to 'ento'.

llvm-svn: 122492
diff --git a/clang/lib/GR/PathDiagnostic.cpp b/clang/lib/GR/PathDiagnostic.cpp
index b496560..69c660b 100644
--- a/clang/lib/GR/PathDiagnostic.cpp
+++ b/clang/lib/GR/PathDiagnostic.cpp
@@ -20,7 +20,7 @@
 #include "llvm/Support/Casting.h"
 
 using namespace clang;
-using namespace GR;
+using namespace ento;
 using llvm::dyn_cast;
 using llvm::isa;