Undo critical part of last change to try to fix crashing testerboxes.

js/src/jsscript.c

@@ -989,7 +989,7 @@ js_NewScript(JSContext *cx, uint32 length, uint32 nsrcnotes, uint32 ntrynotes)
     JSScript *script;
 
     /* Round up source note count to align script->trynotes for its type. */
-    if (ntrynotes)
+    /* XXX only if ntrynotes != 0, but then tinderbox tests crash */
     nsrcnotes += JSTRYNOTE_ALIGNMASK;
     script = (JSScript *) JS_malloc(cx,
                                     sizeof(JSScript) +