=== tests/cases/compiler/objectMembersOnTypes.ts ===
interface I {}
>I : Symbol(I, Decl(objectMembersOnTypes.ts, 0, 0))

class AAA implements I { }
>AAA : Symbol(AAA, Decl(objectMembersOnTypes.ts, 0, 14))
>I : Symbol(I, Decl(objectMembersOnTypes.ts, 0, 0))

var x: number;
>x : Symbol(x, Decl(objectMembersOnTypes.ts, 2, 3))

x.toString();
>x.toString : Symbol(Number.toString, Decl(lib.d.ts, 458, 18))
>x : Symbol(x, Decl(objectMembersOnTypes.ts, 2, 3))
>toString : Symbol(Number.toString, Decl(lib.d.ts, 458, 18))

var i: I;
>i : Symbol(i, Decl(objectMembersOnTypes.ts, 4, 3))
>I : Symbol(I, Decl(objectMembersOnTypes.ts, 0, 0))

i.toString(); // used to be an error
>i.toString : Symbol(Object.toString, Decl(lib.d.ts, 96, 26))
>i : Symbol(i, Decl(objectMembersOnTypes.ts, 4, 3))
>toString : Symbol(Object.toString, Decl(lib.d.ts, 96, 26))

var c: AAA;
>c : Symbol(c, Decl(objectMembersOnTypes.ts, 6, 3))
>AAA : Symbol(AAA, Decl(objectMembersOnTypes.ts, 0, 14))

c.toString(); // used to be an error
>c.toString : Symbol(Object.toString, Decl(lib.d.ts, 96, 26))
>c : Symbol(c, Decl(objectMembersOnTypes.ts, 6, 3))
>toString : Symbol(Object.toString, Decl(lib.d.ts, 96, 26))