TsInterface should correctly export non-annotated public members of a JsType

[niloc132]

@TsInterface
@JsType(namespace = "dh")//TODO instead make a factory method?
public class Foo {
    @JsIgnore// correctly ignored
    public BigIntegerWrapper(String value) {

    }

    // public, so should be exported
    public String asString() {
        return "blah";
    }
}

results in

export interface Foo {	}

instead of including non-static members