Fix namespace polution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110056 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/RegionInfo.cpp b/lib/Analysis/RegionInfo.cpp
index 6f38dcc..5c99852 100644
--- a/lib/Analysis/RegionInfo.cpp
+++ b/lib/Analysis/RegionInfo.cpp
@@ -29,9 +29,9 @@
 
 // Always verify if expensive checking is enabled.
 #ifdef XDEBUG
-bool VerifyRegionInfo = true;
+static bool VerifyRegionInfo = true;
 #else
-bool VerifyRegionInfo = false;
+static bool VerifyRegionInfo = false;
 #endif
 
 static cl::opt<bool,true>