empty_count is triggered on variables/constants named count

[JanMichaelPeter]

if someone names a variable count and checks if its 0 like count == 0 swiftlint throws an error and says “prefer .isEmpty() over checking count ==0” because it thinks that someone is using the method .count() on an array even though that is not the case

[marcelofabri]

Duplicate of #827.