Rollup merge of #118123 - RalfJung:internal-lib-features, r=compiler-errors

Add support for making lib features internal

We have the notion of an "internal" lang feature: a feature that is never intended to be stabilized, and using which can cause ICEs and other issues without that being considered a bug.

This extends that idea to lib features as well. It is an alternative to https://github.com/rust-lang/rust/pull/115623: instead of using an attribute to declare lib features internal, we simply do this based on the name. Everything ending in `_internals` or `_internal` is considered internal.

Then we rename `core_intrinsics` to `core_intrinsics_internal`, which fixes https://github.com/rust-lang/rust/issues/115597.
This commit is contained in:
Michael Goulet 2023-12-05 14:52:41 -05:00 committed by GitHub
commit 76c972cb54

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@ -13,7 +13,7 @@
#![cfg(feature = "sysroot-abi")]
#![feature(proc_macro_internals, proc_macro_diagnostic, proc_macro_span)]
#![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)]
#![allow(unreachable_pub)]
#![allow(unreachable_pub, internal_features)]
extern crate proc_macro;