Renamed class GREngine => GRCoreEngine.
Renamed class GRConstants => GRExprEngine.

This was done with a Perl script, and will result in 80 col. violations that
I will gradually fix up.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47070 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Analysis/GRBlockCounter.cpp b/Analysis/GRBlockCounter.cpp
index def87c2..9dd601b 100644
--- a/Analysis/GRBlockCounter.cpp
+++ b/Analysis/GRBlockCounter.cpp
@@ -9,7 +9,7 @@
 //
 //  This file defines GRBlockCounter, an abstract data type used to count
 //  the number of times a given block has been visited along a path
-//  analyzed by GREngine.
+//  analyzed by GRCoreEngine.
 //
 //===----------------------------------------------------------------------===//