Add support for Reactivity Transform

[ota-meshi]

Lists the work this plugin needs to do to support Reactivity Transform.

Note
These changes will be released after the RFCs have been merged.

• Related to new compiler macros.
  • Provide an env with global variables listed.
    https://eslint.org/docs/latest/developer-guide/working-with-plugins#environments-in-plugins
• Related to the change of defineProps().
  • Change vue/no-setup-props-destructure rule.
    Destructuring assignment immediately after defineProps() is allowed.
    However, Vue2 doesn't allow to use Reactivity Transform, so we may need to split rules.
  • Change vue/require-valid-default-prop rule.
  • Change vue/require-default-prop rule.
  • Change vue/no-boolean-default rule.
    We need to support a new way to specify defaults.

And more?

Additional context

Docs: https://vuejs.org/guide/extras/reactivity-transform.html
PR: vuejs/rfcs#420
Discussion: vuejs/rfcs#369

[ota-meshi]

related to #1793, #1798, #1799, #1947

[sxzz]

Since Reactivity Transform is dropped & deprecated, so can we just close this issue?

[ota-meshi]

Thanks for letting me know! I will close this issue.

[bperel]

Reactivity Transform has been moved to a Vue macro, would that make it reasonable to re-open this ticket, for developers who use this macro?

[sxzz]

@bperel Vue Macros will add ESLint support soon.