- librustdoc::clean::clean_lifetime doesn't need a mut doc context
- librustdoc::clean::normalize doesn't need a mut doc context
- move Some() wrapping up into `clean_predicate()`
- simplify nested if in librustdoc::clean::record_extern_fqn()

Use `check-run-results` for `run-fail` test stderr

Fixes rust-lang#65865

… r=GuillaumeGomez

nits: Cleanups in `librustdoc::clean`

r? ```@GuillaumeGomez```

docs: inline `alloc::ffi::c_str` types to `alloc::ffi`

like rust-lang#134791 but for `alloc`

r? `@tgross35` `@notriddle`

Bump compiler cc

Fixes rust-lang#134657
Pulls in rust-lang/cc-rs#1330

try-job: x86_64-msvc

…jieyouxu

bootstrap: Consolidate the macros for declaring compiletest test suites

Instead of using a dizzying assortment of different macros to declare these test suite steps, we can mostly just use one `test!` macro with a few optional named arguments.

I'm pretty sure that this doesn't change any behaviour, but please do double-check each of the individual declarations.