Uplift `get_def_path` from Clippy
cc rust-lang/rust-clippy#3926
cc #59738
This uplifts `get_def_path` from Clippy. This is a follow up on the
implementation of internal lints: #59316
The internal lint implementation also copied the implementation of the
`AbsolutePathPrinter`. To get rid of this code duplication this also
uplifts the `get_def_path` function from Clippy.
This also renames `match_path` to `match_def_path`, as it was originally
named in Clippy.
r? @Manishearth
Reduce the `DepNode` pre-allocation ratio.
A code size of increase of 15% is overly generous. 2% is more realistic.
This change reduces peak memory size by 20+ MiB on some workloads.
r? @Zoxc
Properly parse '--extern-private' with name and path
It turns out that https://github.com/rust-lang/rust/pull/57586 didn't properly parse `--extern-private name=path`.
This PR properly implements the `--extern-private` option. I've added a new `extern-private` option to `compiletest`, which causes an `--extern-private` option to be passed to the compiler with the proper path.
Part of https://github.com/rust-lang/rust/issues/44663
On musl (and some other platforms), compiletest ends up creating a static rlib
(instead of a dylib) when building 'aux-build' crates.
This commit changes the '--extern-private' path computed by compiletest
to properly take this into account
Fix cross-crate visibility of fictive variant constructors
After merging https://github.com/rust-lang/rust/pull/59376 I realized that the code in the decoder wasn't entirely correct - we "decoded" fictive variant constructors with their variant's visibility, which could be public, rather than demoted to `pub(crate)`.
Fictive constructors are not directly usable in expression/patterns, but the effect still can be observed with imports.
r? @davidtwco
Make BufWriter use get_mut instead of manipulating inner in Write implementation
`get_mut` allows us to abstract over the implementation detail of inner being optional.
update polonius-engine
This updates polonius-engine to [version 0.7.0](https://github.com/rust-lang/polonius/blob/master/RELEASES.md#v070), which adds a hybrid algorithm that starts off with performing a cheaper, location-insensitive analysis before proceeding with the full analysis.
r? @nikomatsakis
