Update LiveDebugVariables during coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120720 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveDebugVariables.h b/lib/CodeGen/LiveDebugVariables.h
index 2e4b052..a69b974 100644
--- a/lib/CodeGen/LiveDebugVariables.h
+++ b/lib/CodeGen/LiveDebugVariables.h
@@ -44,6 +44,9 @@
   /// that happened during register allocation.
   void emitDebugValues();
 
+  /// dump - Print data structures to dbgs().
+  void dump();
+
 private:
 
   virtual bool runOnMachineFunction(MachineFunction &);