// @noEmit: true
// @allowJs: true
// @checkJs: true

// @Filename: def.js
var Outer = {};

// @Filename: a.js
Outer.Inner = class {
    constructor() {
        /** @type {number} */
        this.y = 12
    }
}

/** @type {Outer.Inner} */
var local
local.y
var inner = new Outer.Inner()
inner.y

// @Filename: b.js
/** @type {Outer.Inner} */
var x
x.y
var z = new Outer.Inner()
z.y