QmlDesigner.model: add convertTypeToImportAlias() to ModelNode

We expose convertTypeToImportAlias() in ModelNode.

src/plugins/qmldesigner/designercore/include/modelnode.h

@@ -173,6 +173,8 @@ public:
     void setCustomParserSource(const QString&);
     QString customParserSource() const;
 
+    QString convertTypeToImportAlias() const;
+
 private: // functions
     Internal::InternalNodePointer internalNode() const;
     QString generateNewId() const;

src/plugins/qmldesigner/designercore/model/modelnode.cpp

@@ -960,4 +960,16 @@ QString ModelNode::customParserSource() const
     return internalNode()->customParserSource();
 }
 
+QString ModelNode::convertTypeToImportAlias() const
+{
+    if (!isValid()) {
+        throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
+    }
+
+    if (model()->rewriterView())
+        return model()->rewriterView()->convertTypeToImportAlias(type());
+
+    return type();
+}
+
 }