QmlJS: Don't warn user about imports if static info is available

Don't underline the import if a qmldump fails,
but the typeinfo is available via a .qmltypes file. That should allow
users to 'fix' qmldump issues by shipping a .qmltypes file.

Reviewed-by: Erik Verbruggen

src/plugins/qmljstools/qmljsmodelmanager.h

@@ -87,6 +87,7 @@ public:
                                  const QString &importUri, const QString &importVersion);
 
     virtual CppQmlTypeHash cppQmlTypes() const;
+    virtual BuiltinPackagesHash builtinPackages() const;
 
 Q_SIGNALS:
     void projectPathChanged(const QString &projectPath);