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Vitali Zaidman 97e707d897 simple support to the Partial<T> annotation (#35961 )

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35961

Pull Request resolved: https://github.com/facebook/react-native/pull/35960

This fixes #35864

This feature allows using `$Partial<Obj>` in flow and `Partial<Obj>` in TypeScript based on the spec mentioned here: https://flow.org/en/docs/types/utilities/#toc-partial.

We currently only allow passing an Obj to Partial so
```
export type SomeObj = {
  a: string,
  b?: boolean,
};

export type PartialSomeObj = Partial<SomeObj>;
```
should work.
and also-
```
export type PartialSomeObj = Partial<{
  a: string,
  b?: boolean,
}>;
```
But not
```
export type PartialSomeObj = Partial<Partial<{
  a: string,
  b?: boolean,
}>>;
```
This can be improved in the future by a recursive unwrapping of the value inside the `Partial` annotation.

Changelog:
[General] [Added] -  Allow the use of "Partial<T>" in Turbo Module specs.

Reviewed By: christophpurrer, cipolleschi

Differential Revision: D42640880

fbshipit-source-id: 03a3fccc38ccfc7a5440fe11893beb68e77753f3

2023-01-26 12:30:38 -08:00