Copy type parameters to function with @type tag

[sandersn]

Previously, type references to generic types would fail to copy type parameters from type references in an @type tag. Now the type
parameter is copied.

Note that I left 3 places in the checker unchanged, even though they should technically also get type parameters from type references:

1. getOuterTypeParameters -- not fixing this means, I think, that lookup of a type parameter still won't get instantiated correctly in the body of a function.
2. getLocalTypeParameterOfClassOrInterfaceOrTypeAlias -- only applies to constructor functions which have a type annotation, which doesn't type check in the first place.
3. isThislessType -- It isn't possible to refer to this correctly in a typedef, as far as I can tell.

I'm experimenting with (1) but this fix makes it usable from the call site at least, and fixes the original bug.

Fixes #49039

[sandersn]

Re (1): In Typescript, you can't refer to parameters of type T in the body of a function whose type is contextually typed by a type alias to a generic arrow type:

export type Id = <T>(m : T) => T;
const inTsArrow: Id = m => {
    const o: T = m
    return o;
}

Without that, there's no reason to try to collect outer type parameters in JS.