* destructuring private fields with array pattern / object pattern
* wip: new test cases
* destrucuring and rest for private properties
* test case for loose private-loose
* add transform-desturcturing for exec
* update test case
* remove getPrototypeOf imports from get and set
* wip: destructure super assignment
* throw "Destructuring to a super field is not supported yet."
* fix tests and fix assignment pattern
* remove CallExpression from AssignmentPattern
* test case for insertBefore for jsx
* fix unshiftContainer and insertBefore
* use path.scope.push
* add test making sure computedKeys var declaration at the right block
* add comment
* nit [skip ci]
* Fix super method call in private instance method calling overridden method
* Change return value in test fixtures
* Update tests to verify that overridden method is not called
fix#9189
Obviously this code is intended to throw an error if someone tries to reference a class before it's defined, like:
```js
class Foo {
someField = Foo;
}
```
But there's no problem with referencing the class in a type annotation before it's defined, and this is often necessary for tree structures:
```js
class Foo {
[someSymbol]: Foo;
}
```
* Make @babel/plugin-class-features a normal helper package
This effectively disallows using it directly.
* Rename helper
* Style
* Don't add prefix to plugin name
* Move private methods plugin
