At the moment the `wrap-enums` transfomers is being run prior to `scrub-file` and this is resulting classes which all static properties have been dropped to be wrapped in IIFE.
With this change we wrap ClassDeclarations inside an IIFE, also we move some code from the class fold into the wrap-enums.
This changes the below code:
```js
export class Foo {
method() {
}
}
Foo.bar = 'barValue';
__decorate([
methodDecorator
], Foo.prototype, "method", null);
```
to
```js
export const Foo = /*@__PURE__*/ (() => {
class Foo {
method() {
}
}
Foo.bar = 'barValue';
__decorate([
methodDecorator
], Foo.prototype, "method", null);
return Foo;
})();
```
Fixes#14610
This should clean up the code a bit.
Note: at first I added the no-useless-cast rule, but after getting frustrated
with it (as it has many false positive), I decided to remove the rule but some
useless casts were removed so I let those in the PR.
