=== /a.js ===
class A {
>A : A

	/**
	 * Constructor
	 *
	 * @param {object} [foo={}]
	 */
	constructor(foo = {}) {
>foo : any
>{} : {}

		/**
		 * @type object
		 */
		this.arguments = foo;
>this.arguments = foo : any
>this.arguments : any
>this : this
>arguments : any
>foo : any
	}
}