Refactor TraceInlining method of hydrogen so it works correctly.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 47dff7d3ab76acda11ad0e5f455e5c7e7182ad52..4b943c1be143d93be07fd7ba6f6f611338badced 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -857,7 +857,9 @@ class HGraphBuilder: public AstVisitor {
   // If --trace-inlining, print a line of the inlining trace.  Inlining
   // succeeded if the reason string is NULL and failed if there is a
   // non-NULL reason string.
-  void TraceInline(Handle<JSFunction> target, const char* failure_reason);
+  void TraceInline(Handle<JSFunction> target,
+                   Handle<JSFunction> caller,
+                   const char* failure_reason);
 
   void HandleGlobalVariableAssignment(Variable* var,
                                       HValue* value,