no-unused-vars doesn't count calling a method from a closure in right-hand side

[dgreensp]

Lint Name

no-unused-vars

Code Snippet

const foo = new MyClass(() => {
  foo.hello();
});

Expected Result

No lint errors

Actual Result

Error on const foo

Additional Info

This situation arises when new MyClass has a side-effect, for example attaching event handlers. For the sake of illustration:

class MyClass {
  constructor(run: () => void) {
    setTimeout(run, 1000);
  }
  hello() {
    console.log("hello");
  }
}

In searching for this issue, I only found #667.

Version

deno 1.46.2 (stable, release, aarch64-apple-darwin)
v8 12.9.202.5-rusty
typescript 5.5.2