codeql/javascript/ql/test/library-tests/ClassNode/tst2.js

class C {
  constructor(x) {
    this.x = x;
  }

  method() {
    this.x;
    let closure = () => this.x;
  }

  get getter() {
    return this.x;
  }
}

class D {
  constructor() {
    this.f = (x) => {};
  }
}