Bug 1130811 - Mark PNK_NOP nodes as not being definitions for simpler cleanup of such nodes later. r=shu

--HG--
extra : rebase_source : 63e4bd34070f3844cf35a25e76a9fd29c74059c1

js/src/frontend/Parser.cpp

@@ -1140,6 +1140,7 @@ Parser<FullParseHandler>::makeDefIntoUse(Definition *dn, ParseNode *pn, JSAtom *
         handler.prepareNodeForMutation(dn);
         dn->setKind(PNK_NOP);
         dn->setArity(PN_NULLARY);
+        dn->setDefn(false);
         return true;
     }