Make HJSArrayLength more likely to have identical GVNs.

src/ic.cc

Index: src/ic.cc
diff --git a/src/ic.cc b/src/ic.cc
index bf2a649f7f298d1e53fb53b035b5dcfb323a7ee7..cd54987e584764aa6d5b45f8a69d60069fee537f 100644
--- a/src/ic.cc
+++ b/src/ic.cc
@@ -844,9 +844,7 @@ MaybeObject* LoadIC::Load(State state,
       }
       if (!stub.is_null()) {
         set_target(*stub);
-#ifdef DEBUG
-        if (FLAG_trace_ic) PrintF("[LoadIC : +#length /string]\n");
-#endif
+        TRACE_IC("LoadICStringLength", name, state, target());
       }
       // Get the string if we have a string wrapper object.
       Handle<Object> string = object->IsJSValue()
@@ -868,9 +866,7 @@ MaybeObject* LoadIC::Load(State state,
       }
       if (!stub.is_null()) {
         set_target(*stub);
-#ifdef DEBUG
-        if (FLAG_trace_ic) PrintF("[LoadIC : +#length /array]\n");
-#endif
+        TRACE_IC("LoadICArrayLength", name, state, target());
       }
       return JSArray::cast(*object)->length();
     }