The following, when NoEmptyLinesOpeningClosingBraces is true,
func foo() {
  let x = 1
  // let y = 2
  // let z = 3
}results in
func foo() {
  let x = 1
  // let y = 2
  // let z = 3
}It also happens the other way around.
func foo() {
  // let w = 0
  let x = 1
}becomes
func foo() {
  // let w = 0
  let x = 1
}IMO both cases should be left unchanged, because these empty lines will likely be intentional. Also, in the stricter sense, they are not located after/before the opening/closing braces.