Add dump method for debugging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146293 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Metadata.h

@@ -225,6 +225,9 @@ public:
 
   /// print - Implement operator<< on NamedMDNode.
   void print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW = 0) const;
+
+  /// dump() - Allow printing of NamedMDNodes from the debugger.
+  void dump() const;
 };
 
 } // end llvm namespace