This change merges `check_lint_and_tool_name` into `check_lint_name` in
order to avoid having two very similar functions.

Also adds the `.stderr` file back for the test case, since apparently
it is still needed.

Previously this was using a `.stderr` file, but that does not seem to
work for all cases. This change uses `// error-pattern:` instead.

Object started depending on it

This shares a little more code between checking command line and
attribute lint specifications.

This adds a ui test to make sure rustc accepts lint arguments such as
`-A clippy::foo` when clippy is disabled.

The only change here is a fix for `sys.platform` on Linux. Python 3.3
changed the API to return "linux" instead of "linux2"/"linux3", so this
commit uses `.startswith("python")` to make the code work on Python 3
without breaking Python 2.

It makes very little sense to maintain denylists of ABIs when, as far as
non-generic ABIs are concerned, targets usually only support a small
subset of the available ABIs.

This has historically been a cause of bugs such as us allowing use of
the platform-specific ABIs on x86 targets – these in turn would cause
LLVM errors or assertions to fire.

Fixes #57182

Sponsored by: standard.ai

This reverts commit 8d5fb5bf.

This reverts commit 715c68fe.

This reverts commit 41a345d4c46dad1a98c9993bc78513415994e8ba.

These were only used once, in a place where it was trivial to replace.
Also, it's unclear what 'clean' would mean for these, so it seems better
to be explicit.