[analyzer] Refactoring: Drop the 'GR' prefix.

llvm-svn: 122424
diff --git a/clang/lib/GR/BasicValueFactory.cpp b/clang/lib/GR/BasicValueFactory.cpp
index 6e94a2a..7e45a15 100644
--- a/clang/lib/GR/BasicValueFactory.cpp
+++ b/clang/lib/GR/BasicValueFactory.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 //
 //  This file defines BasicValueFactory, a class that manages the lifetime
-//  of APSInt objects and symbolic constraints used by GRExprEngine
+//  of APSInt objects and symbolic constraints used by ExprEngine
 //  and related classes.
 //
 //===----------------------------------------------------------------------===//