// String literal types are only valid in overload signatures

function foo(x: any);
function foo(x: 'hi') { }

class C {
    foo(x: string);
    foo(x: 'hi') { }
}

interface I {
    (x: 'a');
    (x: 'hi');
    foo(x: 'a', y: 'a');
    foo(x: 'hi', y: 'hi');
}

var a: {
    (x: 'hi');
    (x: 'a');
    foo(x: 'hi');
    foo(x: 'a');
}

var b = {
    foo(x: 'hi') { },
    foo(x: 'a') { },
}
