What this patch does:
- Stability annotations are now based on "exported items" supplied by rustc_privacy and not "public items". Exported items are as accessible for external crates as directly public items and should be annotated with stability attributes.
- Trait impls require annotations now.
- Reexports require annotations now.
- Crates themselves didn't require annotations, now they do.
- Exported macros are annotated now, but these annotations are not used yet.
- Some useless annotations are detected and result in errors
- Finally, some small bugs are fixed - deprecation propagates from stable deprecated parents, items in blocks are traversed correctly (fixes https://github.com/rust-lang/rust/issues/29034) + some code cleanup.
empty region, and they complicate region inference to no particular end.
They also lead in some cases to spurious errors like #29048 (though in
some cases these errors are helpful in tracking down missing
constraints).
Currently the explain command line flag requires full error codes, complete with
the leading zeros and the E at the beginning. This commit changes that,
if you don't supply a full error code then the error number is padded
out to the required size and the E is added to the beginning.
This means that where previously you would need to write E0001, you can
now write 0001, 001, 01 or just 1 to refer to the same error.
Currently the explain command requires full erorr codes, complete with
the leading zeros and the E at the beginning. This commit changes that,
if you don't supply a full erorr code then the error number is padded
out to the required size and the E is added to the beginning.
This means that where previously you would need to write E0001, you can
now write 0001, 001, 01 or jsut 1 to refer to the same error.
This PR closes out #28716 and #28735 by making two changes to the compiler:
1. The `--emit` flag to the compiler now supports the ability to specify the output file name of a partuclar emit type. For example `--emit dep-info=bar.d,asm=foo.s,link` is now accepted.
2. The dep-info emission now emits a dummy target for all input file names to protect against deleted files.
