==== tests/cases/conformance/types/members/objectTypeHidingMembersOfExtendedObject.ts (8 errors) ====
    class A {
        foo: string;
    }
    
    class B extends A {
        bar: string;
    }
    
    interface Object {
        data: A;
        [x: string]: Object;
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'constructor' of type 'Function' is not assignable to string index type 'Object'.
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'data' of type 'A' is not assignable to string index type 'Object'.
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'hasOwnProperty' of type '(v: string) => boolean' is not assignable to string index type 'Object'.
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'isPrototypeOf' of type '(v: Object) => boolean' is not assignable to string index type 'Object'.
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'propertyIsEnumerable' of type '(v: string) => boolean' is not assignable to string index type 'Object'.
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'toLocaleString' of type '() => string' is not assignable to string index type 'Object'.
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'toString' of type '() => string' is not assignable to string index type 'Object'.
        ~~~~~~~~~~~~~~~~~~~~
!!! Property 'valueOf' of type '() => Object' is not assignable to string index type 'Object'.
    }
    
    class C {
        valueOf() { }
        data: B;
        [x: string]: any;
    }
    
    var c: C;
    var r1: void = c.valueOf();
    var r1b: B = c.data;
    var r1c = r1b['hm']; // should be 'Object'
    var r1d = c['hm']; // should be 'any'
    
    interface I {
        valueOf(): void;
        data: B;
        [x: string]: any;
    }
    
    var i: I;
    var r2: void = i.valueOf();
    var r2b: B = i.data;
    var r2c = r2b['hm']; // should be 'Object'
    var r2d = i['hm']; // should be 'any'
    
    var a = {
        valueOf: () => { },
        data: new B()
    }
    
    var r3: void = a.valueOf();
    var r3b: B = a.data;
    var r3c = r3b['hm']; // should be 'Object'
    var r3d = i['hm'];
    
    var b: {
        valueOf(): void;
        data: B;
        [x: string]: any;
    }
    
    var r4: void = b.valueOf();