Remove the source archive functionality of ArchiveWriter
We now build archives through strictly additive means rather than taking an existing archive and potentially substracting parts. This is simpler and makes it easier to swap out the archive writer in https://github.com/rust-lang/rust/pull/97485.
once cell renamings
This PR does the renamings proposed in https://github.com/rust-lang/rust/issues/74465#issuecomment-1153703128
- Move/rename `lazy::{OnceCell, Lazy}` to `cell::{OnceCell, LazyCell}`
- Move/rename `lazy::{SyncOnceCell, SyncLazy}` to `sync::{OnceLock, LazyLock}`
(I used `Lazy...` instead of `...Lazy` as it seems to be more consistent, easier to pronounce, etc)
```@rustbot``` label +T-libs-api -T-libs
Make `std::mem::needs_drop` accept `?Sized`
This change attempts to make `needs_drop` work with types like `[u8]` and `str`.
This enables code in types like `Arc<T>` that was not possible before, such as https://github.com/rust-lang/rust/pull/97676.
And likewise for the `Const::val` method.
Because its type is called `ConstKind`. Also `val` is a confusing name
because `ConstKind` is an enum with seven variants, one of which is
called `Value`. Also, this gives consistency with `TyS` and `PredicateS`
which have `kind` fields.
The commit also renames a few `Const` variables from `val` to `c`, to
avoid confusion with the `ConstKind::Value` variant.
Rollup of 5 pull requests
Successful merges:
- #97058 (Various refactors to the incr comp workproduct handling)
- #97301 (Allow unstable items to be re-exported unstably without requiring the feature be enabled)
- #97738 (Fix ICEs from zsts within unsized types with non-zero offsets)
- #97771 (Remove SIGIO reference on Haiku)
- #97808 (Add some unstable target features for the wasm target codegen)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Add support for emitting functions with `coldcc` to LLVM
The eventual goal is to try using this for things like the internal panicking stuff, to see whether it helps.
