TypeScript/tests/baselines/reference/declFileForInterfaceWithOptionalFunction.types

=== tests/cases/compiler/declFileForInterfaceWithOptionalFunction.ts ===

interface I {
>I : I

    foo? (x?);
>foo : (x?: any) => any
>x : any

    foo2? (x?: number): number;
>foo2 : (x?: number) => number
>x : number
}