[Errors] Exported type whose functions use parameters of non-exported type

[mhegazy]

interface Foo {
    x: number;
}

export class Bar {
    f(x: Foo) { }

}

Expected: Parameter 'x' of public method from exported class has or is using private type 'Foo'.

Actual: no error

[sheetalkamat]

Fixed by 4115077