Standardize the names of include guards.

llvm-svn: 8645
diff --git a/llvm/lib/CodeGen/RegAlloc/LiveRange.h b/llvm/lib/CodeGen/RegAlloc/LiveRange.h
index c3caa29..2d00c82 100644
--- a/llvm/lib/CodeGen/RegAlloc/LiveRange.h
+++ b/llvm/lib/CodeGen/RegAlloc/LiveRange.h
@@ -8,8 +8,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LIVE_RANGE_H
-#define LIVE_RANGE_H
+#ifndef LIVERANGE_H
+#define LIVERANGE_H
 
 #include "llvm/CodeGen/ValueSet.h"
 #include "llvm/Value.h"