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

llvm-svn: 122424
diff --git a/clang/lib/GR/SymbolManager.cpp b/clang/lib/GR/SymbolManager.cpp
index 95df307..6d078f4 100644
--- a/clang/lib/GR/SymbolManager.cpp
+++ b/clang/lib/GR/SymbolManager.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 //
 //  This file defines SymbolManager, a class that manages symbolic values
-//  created for use by GRExprEngine and related classes.
+//  created for use by ExprEngine and related classes.
 //
 //===----------------------------------------------------------------------===//