Rule proposal: no-this-outside-of-class

[zanminkian]

Description

In modern JavaScript, this should not appear outside of an class.

Fail

function foo () {
  this.bar;
}
function Foo(name) {
  this.name = name;
}
class Foo {
  foo() {
    function bar() {
      this.baz;
    }
  }
}

Pass

class Foo {
  foo() {
    this.name;
  }
}

class Foo {
  foo() {
    const bar = () => {
      this.name;
    }
  }
}

Proposed rule name

no-this-outside-of-class

Additional Info

No response