Re: [PATCH V3 05/10] capabilities: use intuitive names for id changes

Part of the motivation here is that the things we are checking for are some rather baroque combinations of conditions, so having each piece of those be as simple and clear as possible helps to better reason about what is going on (which helped Richard to find the bug he is fixing). These helpers are local (should all be static, as James pointed out). Making helpers to simplify the final checks is the right way to clarify code. I'm all for making sure they are as clear as possible, but I do think their existence is justified.