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Auto merge of #92805 - BoxyUwU:revert-lazy-anon-const-substs, r=lcnr

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partially revertish `lazily "compute" anon const default substs`

reverts #87280 except for some of the changes around `ty::Unevaluated` having a visitor and a generic for promoted
why revert: <https://github.com/rust-lang/rust/pull/92805#issuecomment-1010736049>

r? `@lcnr`
This commit is contained in:
bors 2022-01-16 11:19:21 +00:00
commit 7be8693984
123 changed files with 405 additions and 886 deletions
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4
compiler/rustc_privacy/src/lib.rs
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@ -177,10 +177,6 @@ where
{
type BreakTy = V::BreakTy;
fn tcx_for_anon_const_substs(&self) -> Option<TyCtxt<'tcx>> {
Some(self.def_id_visitor.tcx())
}
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<V::BreakTy> {
let tcx = self.def_id_visitor.tcx();
// InternalSubsts are not visited here because they are visited below in `super_visit_with`.