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Rollup merge of #95710 - fee1-dead-contrib:stabilize_arbitrary_enum_discriminant, r=joshtriplett

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Stabilize arbitrary_enum_discriminant, take 2

Documentation has been updated in https://github.com/rust-lang/reference/pull/1055. cc #86860 for previous stabilization report.

Not yet marks https://github.com/rust-lang/rust/issues/60553 as done: need documentation in the rust reference.
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Dylan DPC 2022-10-26 17:32:53 +05:30 • committed by GitHub
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2
compiler/rustc_hir_analysis/src/check/check.rs
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@ -1180,7 +1180,7 @@ fn check_enum<'tcx>(tcx: TyCtxt<'tcx>, vs: &'tcx [hir::Variant<'tcx>], def_id: L
}
}
if tcx.adt_def(def_id).repr().int.is_none() && tcx.features().arbitrary_enum_discriminant {
if tcx.adt_def(def_id).repr().int.is_none() {
let is_unit = |var: &hir::Variant<'_>| matches!(var.data, hir::VariantData::Unit(..));
let has_disr = |var: &hir::Variant<'_>| var.disr_expr.is_some();