=== tests/cases/compiler/recursiveArrayNotCircular.ts ===
type Action<T, P> = P extends void ? { type : T } : { type: T, payload: P }
>Action : Symbol(Action, Decl(recursiveArrayNotCircular.ts, 0, 0))
>T : Symbol(T, Decl(recursiveArrayNotCircular.ts, 0, 12))
>P : Symbol(P, Decl(recursiveArrayNotCircular.ts, 0, 14))
>P : Symbol(P, Decl(recursiveArrayNotCircular.ts, 0, 14))
>type : Symbol(type, Decl(recursiveArrayNotCircular.ts, 0, 38))
>T : Symbol(T, Decl(recursiveArrayNotCircular.ts, 0, 12))
>type : Symbol(type, Decl(recursiveArrayNotCircular.ts, 0, 53))
>T : Symbol(T, Decl(recursiveArrayNotCircular.ts, 0, 12))
>payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62))
>P : Symbol(P, Decl(recursiveArrayNotCircular.ts, 0, 14))

enum ActionType {
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))

    Foo,
>Foo : Symbol(ActionType.Foo, Decl(recursiveArrayNotCircular.ts, 2, 17))

    Bar,
>Bar : Symbol(ActionType.Bar, Decl(recursiveArrayNotCircular.ts, 3, 8))

    Baz,
>Baz : Symbol(ActionType.Baz, Decl(recursiveArrayNotCircular.ts, 4, 8))

    Batch
>Batch : Symbol(ActionType.Batch, Decl(recursiveArrayNotCircular.ts, 5, 8))
}

type ReducerAction =
>ReducerAction : Symbol(ReducerAction, Decl(recursiveArrayNotCircular.ts, 7, 1))

  | Action<ActionType.Bar, number>
>Action : Symbol(Action, Decl(recursiveArrayNotCircular.ts, 0, 0))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Bar : Symbol(ActionType.Bar, Decl(recursiveArrayNotCircular.ts, 3, 8))

  | Action<ActionType.Baz, boolean>
>Action : Symbol(Action, Decl(recursiveArrayNotCircular.ts, 0, 0))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Baz : Symbol(ActionType.Baz, Decl(recursiveArrayNotCircular.ts, 4, 8))

  | Action<ActionType.Foo, string>
>Action : Symbol(Action, Decl(recursiveArrayNotCircular.ts, 0, 0))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Foo : Symbol(ActionType.Foo, Decl(recursiveArrayNotCircular.ts, 2, 17))

  | Action<ActionType.Batch, ReducerAction[]>
>Action : Symbol(Action, Decl(recursiveArrayNotCircular.ts, 0, 0))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Batch : Symbol(ActionType.Batch, Decl(recursiveArrayNotCircular.ts, 5, 8))
>ReducerAction : Symbol(ReducerAction, Decl(recursiveArrayNotCircular.ts, 7, 1))

function assertNever(a: never): never {
>assertNever : Symbol(assertNever, Decl(recursiveArrayNotCircular.ts, 13, 45))
>a : Symbol(a, Decl(recursiveArrayNotCircular.ts, 15, 21))

    throw new Error("Unreachable!");
>Error : Symbol(Error, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
}

function reducer(action: ReducerAction): void {
>reducer : Symbol(reducer, Decl(recursiveArrayNotCircular.ts, 17, 1))
>action : Symbol(action, Decl(recursiveArrayNotCircular.ts, 19, 17))
>ReducerAction : Symbol(ReducerAction, Decl(recursiveArrayNotCircular.ts, 7, 1))

    switch(action.type) {
>action.type : Symbol(type, Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53))
>action : Symbol(action, Decl(recursiveArrayNotCircular.ts, 19, 17))
>type : Symbol(type, Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53), Decl(recursiveArrayNotCircular.ts, 0, 53))

        case ActionType.Bar:
>ActionType.Bar : Symbol(ActionType.Bar, Decl(recursiveArrayNotCircular.ts, 3, 8))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Bar : Symbol(ActionType.Bar, Decl(recursiveArrayNotCircular.ts, 3, 8))

            const x: number = action.payload;
>x : Symbol(x, Decl(recursiveArrayNotCircular.ts, 22, 17))
>action.payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62))
>action : Symbol(action, Decl(recursiveArrayNotCircular.ts, 19, 17))
>payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62))

            break;
        case ActionType.Baz:
>ActionType.Baz : Symbol(ActionType.Baz, Decl(recursiveArrayNotCircular.ts, 4, 8))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Baz : Symbol(ActionType.Baz, Decl(recursiveArrayNotCircular.ts, 4, 8))

            const y: boolean = action.payload;
>y : Symbol(y, Decl(recursiveArrayNotCircular.ts, 25, 17))
>action.payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62), Decl(recursiveArrayNotCircular.ts, 0, 62))
>action : Symbol(action, Decl(recursiveArrayNotCircular.ts, 19, 17))
>payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62), Decl(recursiveArrayNotCircular.ts, 0, 62))

            break;
        case ActionType.Foo:
>ActionType.Foo : Symbol(ActionType.Foo, Decl(recursiveArrayNotCircular.ts, 2, 17))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Foo : Symbol(ActionType.Foo, Decl(recursiveArrayNotCircular.ts, 2, 17))

            const z: string = action.payload;
>z : Symbol(z, Decl(recursiveArrayNotCircular.ts, 28, 17))
>action.payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62))
>action : Symbol(action, Decl(recursiveArrayNotCircular.ts, 19, 17))
>payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62))

            break;
        case ActionType.Batch:
>ActionType.Batch : Symbol(ActionType.Batch, Decl(recursiveArrayNotCircular.ts, 5, 8))
>ActionType : Symbol(ActionType, Decl(recursiveArrayNotCircular.ts, 0, 75))
>Batch : Symbol(ActionType.Batch, Decl(recursiveArrayNotCircular.ts, 5, 8))

            action.payload.map(reducer);
>action.payload.map : Symbol(Array.map, Decl(lib.es5.d.ts, --, --))
>action.payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62))
>action : Symbol(action, Decl(recursiveArrayNotCircular.ts, 19, 17))
>payload : Symbol(payload, Decl(recursiveArrayNotCircular.ts, 0, 62))
>map : Symbol(Array.map, Decl(lib.es5.d.ts, --, --))
>reducer : Symbol(reducer, Decl(recursiveArrayNotCircular.ts, 17, 1))

            break;
        default: return assertNever(action);
>assertNever : Symbol(assertNever, Decl(recursiveArrayNotCircular.ts, 13, 45))
>action : Symbol(action, Decl(recursiveArrayNotCircular.ts, 19, 17))
    }
}