=== /a.js ===
class A {
>A : Symbol(A, Decl(a.js, 0, 0))

	/**
	 * @param {object} [foo={}]
	 */
	m(foo = {}) {
>m : Symbol(A.m, Decl(a.js, 0, 9))
>foo : Symbol(foo, Decl(a.js, 4, 3))

		/**
		 * @type object
		 */
		this.arguments = foo;
>this.arguments : Symbol(A.arguments, Decl(a.js, 4, 14))
>this : Symbol(A, Decl(a.js, 0, 0))
>arguments : Symbol(A.arguments, Decl(a.js, 4, 14))
>foo : Symbol(foo, Decl(a.js, 4, 3))
	}
}