Drop 'const'

llvm-svn: 36662
diff --git a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
index aef64b4..b545ad3f 100644
--- a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
+++ b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
@@ -22,7 +22,7 @@
 #include "llvm/Type.h"
 using namespace llvm;
 
-const char UnifyFunctionExitNodes::ID = 0;
+char UnifyFunctionExitNodes::ID = 0;
 static RegisterPass<UnifyFunctionExitNodes>
 X("mergereturn", "Unify function exit nodes");