- Thanks to Markus on Slack for saying "the cop should only apply to the
content of the blocks, or more specifically only to stanzas that are
direct children of cask or on_* blocks", which made me realize that
I was overcomplicating things.
- Now that we detect correct stanza _grouping_ within `on_*` blocks in
Casks (PR 15211), correct stanza _ordering_ in `on_*` blocks was the
next logical step. For example, `url` has to come after `version` and
`sha256` in an `on_macos` or `on_intel` block for consistency with the
top-level stanza order we enforce elsewhere.
- Still not doing the nested `on_os` inside `on_arch`, that felt
excessive for an edge case that isn't present in any actual real
Casks we have. I removed the test with that specific TODO.
Anywhere we can use `blob/master` we can use `blob/HEAD` instead. This
will make life easier if we ever rename our default branch in future
(once/if Git and GitHub provides the necessary tooling to do so).
