Bug 695422. js: Return NULL instead of false. r=luke

Caught with clang

--HG--
extra : rebase_source : dbb9c4ffc8e38f30b467ee38d1923f0645ea8b2e

js/src/jsxml.cpp

@@ -1766,7 +1766,7 @@ ParseXMLSource(JSContext *cx, JSString *src)
             JSObject *scopeChain = GetCurrentScopeChain(cx);
             if (!scopeChain) {
                 cx->free_(chars);
-                return false;
+                return NULL;
             }
 
             ParseNode *pn = parser.parseXMLText(scopeChain, false);

js/src/vm/Debugger.cpp

@@ -1829,7 +1829,7 @@ Debugger::newDebuggerScript(JSContext *cx, JSScript *script, JSObject *holder)
     JS_ASSERT(proto);
     JSObject *scriptobj = NewNonFunction<WithProto::Given>(cx, &DebuggerScript_class, proto, NULL);
     if (!scriptobj || !scriptobj->ensureClassReservedSlots(cx))
-        return false;
+        return NULL;
     scriptobj->setPrivate(script);
     scriptobj->setReservedSlot(JSSLOT_DEBUGSCRIPT_OWNER, ObjectValue(*object));
     scriptobj->setReservedSlot(JSSLOT_DEBUGSCRIPT_HOLDER, PrivateValue(holder));