Add debugging helper


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5235 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp
index 517a352..b54a1a0 100644
--- a/lib/Transforms/Utils/ValueMapper.cpp
+++ b/lib/Transforms/Utils/ValueMapper.cpp
@@ -81,7 +81,8 @@
       assert(0 && "Unknown type of constant!");
     }
   }
-  
+
+  V->dump();
   assert(0 && "Unknown value type: why didn't it get resolved?!");
   return 0;
 }