=== tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts ===
var a = {}["hello"];
>a : undefined
>{}["hello"] : undefined
>{} : {}
>"hello" : "hello"

var b: string = { '': 'foo' }[''];
>b : string
>{ '': 'foo' }[''] : string
>{ '': 'foo' } : { '': string; }
>'' : string
>'foo' : "foo"
>'' : ""

var c = {
>c : { get: (key: string) => string; }
>{  get: (key: string) => 'foobar'} : { get: (key: string) => string; }

  get: (key: string) => 'foobar'
>get : (key: string) => string
>(key: string) => 'foobar' : (key: string) => string
>key : string
>'foobar' : "foobar"

};
c['hello'];
>c['hello'] : any
>c : { get: (key: string) => string; }
>'hello' : "hello"

const foo = c['hello'];
>foo : any
>c['hello'] : any
>c : { get: (key: string) => string; }
>'hello' : "hello"

var d = {
>d : { set: (key: string) => string; }
>{  set: (key: string) => 'foobar'} : { set: (key: string) => string; }

  set: (key: string) => 'foobar'
>set : (key: string) => string
>(key: string) => 'foobar' : (key: string) => string
>key : string
>'foobar' : "foobar"

};
const bar = d['hello'];
>bar : any
>d['hello'] : any
>d : { set: (key: string) => string; }
>'hello' : "hello"

{
  let e = {
>e : { get: (key: string) => string; set: (key: string) => string; }
>{    get: (key: string) => 'foobar',    set: (key: string) => 'foobar'  } : { get: (key: string) => string; set: (key: string) => string; }

    get: (key: string) => 'foobar',
>get : (key: string) => string
>(key: string) => 'foobar' : (key: string) => string
>key : string
>'foobar' : "foobar"

    set: (key: string) => 'foobar'
>set : (key: string) => string
>(key: string) => 'foobar' : (key: string) => string
>key : string
>'foobar' : "foobar"

  };
  e['hello'];
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string) => string; }
>'hello' : "hello"

  e['hello'] = 'modified';
>e['hello'] = 'modified' : "modified"
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string) => string; }
>'hello' : "hello"
>'modified' : "modified"

  e['hello'] += 1;
>e['hello'] += 1 : any
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string) => string; }
>'hello' : "hello"
>1 : 1

  e['hello'] ++;
>e['hello'] ++ : number
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string) => string; }
>'hello' : "hello"
}

{
  let e = {
>e : { get: (key: string) => string; set: (key: string, value: string) => string; }
>{    get: (key: string) => 'foobar',    set: (key: string, value: string) => 'foobar'  } : { get: (key: string) => string; set: (key: string, value: string) => string; }

    get: (key: string) => 'foobar',
>get : (key: string) => string
>(key: string) => 'foobar' : (key: string) => string
>key : string
>'foobar' : "foobar"

    set: (key: string, value: string) => 'foobar'
>set : (key: string, value: string) => string
>(key: string, value: string) => 'foobar' : (key: string, value: string) => string
>key : string
>value : string
>'foobar' : "foobar"

  };
  e['hello'];
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string, value: string) => string; }
>'hello' : "hello"

  e['hello'] = 'modified';
>e['hello'] = 'modified' : "modified"
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string, value: string) => string; }
>'hello' : "hello"
>'modified' : "modified"

  e['hello'] += 1;
>e['hello'] += 1 : any
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string, value: string) => string; }
>'hello' : "hello"
>1 : 1

  e['hello'] ++;
>e['hello'] ++ : number
>e['hello'] : any
>e : { get: (key: string) => string; set: (key: string, value: string) => string; }
>'hello' : "hello"
}

{
  let e = {
>e : { get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }
>{    get: (key: "hello" | "world") => 'foobar',    set: (key: "hello" | "world", value: string) => 'foobar'  } : { get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }

    get: (key: "hello" | "world") => 'foobar',
>get : (key: "hello" | "world") => string
>(key: "hello" | "world") => 'foobar' : (key: "hello" | "world") => string
>key : "hello" | "world"
>'foobar' : "foobar"

    set: (key: "hello" | "world", value: string) => 'foobar'
>set : (key: "hello" | "world", value: string) => string
>(key: "hello" | "world", value: string) => 'foobar' : (key: "hello" | "world", value: string) => string
>key : "hello" | "world"
>value : string
>'foobar' : "foobar"

  };
  e['hello'];
>e['hello'] : any
>e : { get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }
>'hello' : "hello"

  e['hello'] = 'modified';
>e['hello'] = 'modified' : "modified"
>e['hello'] : any
>e : { get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }
>'hello' : "hello"
>'modified' : "modified"

  e['hello'] += 1;
>e['hello'] += 1 : any
>e['hello'] : any
>e : { get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }
>'hello' : "hello"
>1 : 1

  e['hello'] ++;
>e['hello'] ++ : number
>e['hello'] : any
>e : { get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }
>'hello' : "hello"
}

{
  ({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'];
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] : undefined
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} }) : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>'hello' : "hello"

  ({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] = 'modified';
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] = 'modified' : "modified"
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] : any
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} }) : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>'hello' : "hello"
>'modified' : "modified"

  ({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] += 1;
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] += 1 : any
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] : any
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} }) : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>'hello' : "hello"
>1 : 1

  ({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] ++;
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] ++ : number
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] : any
>({ get: (key: string) => 'hello', set: (key: string, value: string) => {} }) : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>'hello' : "hello"
}

{
  ({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'];
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] : undefined
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }) : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>{ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } } : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>'hello' : "hello"

  ({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] = 'modified';
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] = 'modified' : "modified"
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] : any
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }) : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>{ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } } : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>'hello' : "hello"
>'modified' : "modified"

  ({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] += 1;
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] += 1 : any
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] : any
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }) : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>{ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } } : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>'hello' : "hello"
>1 : 1

  ({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] ++;
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] ++ : number
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] : any
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }) : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>{ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } } : { foo: { get: (key: string) => string; set: (key: string, value: string) => void; }; }
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>{ get: (key: string) => 'hello', set: (key: string, value: string) => {} } : { get: (key: string) => string; set: (key: string, value: string) => void; }
>get : (key: string) => string
>(key: string) => 'hello' : (key: string) => string
>key : string
>'hello' : "hello"
>set : (key: string, value: string) => void
>(key: string, value: string) => {} : (key: string, value: string) => void
>key : string
>value : string
>foo : { get: (key: string) => string; set: (key: string, value: string) => void; }
>'hello' : "hello"
}

const o = { a: 0 };
>o : { a: number; }
>{ a: 0 } : { a: number; }
>a : number
>0 : 0

declare const k: "a" | "b" | "c";
>k : "a" | "b" | "c"

o[k];
>o[k] : any
>o : { a: number; }
>k : "a" | "b" | "c"


declare const k2: "c";
>k2 : "c"

o[k2];
>o[k2] : any
>o : { a: number; }
>k2 : "c"

declare const sym : unique symbol;
>sym : unique symbol

o[sym];
>o[sym] : any
>o : { a: number; }
>sym : unique symbol

enum NumEnum { a, b }
>NumEnum : NumEnum
>a : NumEnum.a
>b : NumEnum.b

let numEnumKey: NumEnum;
>numEnumKey : NumEnum

o[numEnumKey];
>o[numEnumKey] : any
>o : { a: number; }
>numEnumKey : NumEnum


enum StrEnum { a = "a", b = "b" }
>StrEnum : StrEnum
>a : StrEnum.a
>"a" : "a"
>b : StrEnum.b
>"b" : "b"

let strEnumKey: StrEnum;
>strEnumKey : StrEnum

o[strEnumKey];
>o[strEnumKey] : any
>o : { a: number; }
>strEnumKey : StrEnum


interface MyMap<K, T> {
  get(key: K): T;
>get : (key: K) => T
>key : K

  set(key: K, value: T): void;
>set : (key: K, value: T) => void
>key : K
>value : T
}

interface Dog { bark(): void; }
>bark : () => void

let rover: Dog = { bark() {} };
>rover : Dog
>{ bark() {} } : { bark(): void; }
>bark : () => void

declare let map: MyMap<Dog, string>;
>map : MyMap<Dog, string>

map[rover] = "Rover";
>map[rover] = "Rover" : "Rover"
>map[rover] : any
>map : MyMap<Dog, string>
>rover : Dog
>"Rover" : "Rover"

interface I {
  prop: MyMap<string, string>
>prop : MyMap<string, string>
}
declare const m: I;
>m : I

m.prop['a'];
>m.prop['a'] : any
>m.prop : MyMap<string, string>
>m : I
>prop : MyMap<string, string>
>'a' : "a"