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Auto merge of #118605 - fee1-dead-contrib:rm-rustc_host, r=compiler-errors

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Remove `#[rustc_host]`, use internal desugaring

Also removed a way for users to explicitly specify the host param since that isn't particularly useful. This should eliminate any pain with encoding attributes across crates and etc.

r? `@compiler-errors`
This commit is contained in:
bors 2023-12-06 16:00:24 +00:00
commit f32d29837d
16 changed files with 56 additions and 88 deletions
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6
compiler/rustc_feature/src/builtin_attrs.rs
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@ -719,12 +719,6 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
and it is only intended to be used in `alloc`."
),
rustc_attr!(
rustc_host, AttributeType::Normal, template!(Word), ErrorFollowing,
"#[rustc_host] annotates const generic parameters as the `host` effect param, \
and it is only intended for internal use and as a desugaring."
),
BuiltinAttribute {
name: sym::rustc_diagnostic_item,
// FIXME: This can be `true` once we always use `tcx.is_diagnostic_item`.