[BUG] aliased Fragments and KeepAlive's children should not be transformed into slots.

[zhiyuanzmj]

🐛 Bug description

aliased Fragments and KeepAlive's children should not be transformed into slots.

import { Fragment as FragmentA } from 'vue'

const Root = <FragmentA>root</FragmentA>
// will be coverted to
const Root = _createVNode(_FragmentA, null, {
  default: () => [_createTextVNode("root2")]
});

📝 Steps to reproduce

REPL

Reproduction Link (required):

🏞 Desired result

import { Fragment as FragmentA } from 'vue'

const Root = <FragmentA>root</FragmentA>
// should be converted to array
const Root = _createVNode(_FragmentA, null, [_createTextVNode("root2")]);

🚑 Other information

vue-macros/vue-macros#954