Improve prefer-immediate-return: keep comments when fixing

[amankkg]

I want to report a bug.

Reproducer

// minimal reproducer if relevant
const format = (n: string) => {
  // const n = digits(string)
  // const fmt = new l.AsYouType()
  const input = fmt.input(n)

  // if (!input) return 'foo'

  return input
}

Expected behavior

Rule fix is applied. Commented blocks remain inside a function.

Actual behavior

const format = (n: string) => {
  // const n = digits(string)
  // const fmt = new l.AsYouType()
  return fmt.input(n)
}

eslint-plugin-sonarjs version: 0.5.0

eslint version: 6.8.0

Node.js version: 12

Rule key: sonarjs/prefer-immediate-return