Correctly deny late-bound lifetimes from parent in anon consts and TAITs

[compiler-errors]

Reuse the AnonConstBoundary scope (introduced in #108553, renamed in this PR to LateBoundary) to deny late-bound vars of all kinds (ty/const/lifetime) in anon consts and TAITs.

Side-note, but I would like to consolidate this with the error reporting for RPITs (E0657):

rust/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs

Lines 733 to 754 in c4f2577

	if !parent_id.is_owner() {
	struct_span_err!(
	self.tcx.sess,
	lifetime.ident.span,
	E0657,
	"`impl Trait` can only capture lifetimes bound at the fn or impl level"
	)
	.emit();
	self.uninsert_lifetime_on_error(lifetime, def.unwrap());
	}
	if let hir::Node::Item(hir::Item {
	kind: hir::ItemKind::OpaqueTy { .. }, ..
	}) = self.tcx.hir().get(parent_id)
	{
	let mut err = self.tcx.sess.struct_span_err(
	lifetime.ident.span,
	"higher kinded lifetime bounds on nested opaque types are not supported yet",
	);
	err.span_note(self.tcx.def_span(def_id), "lifetime declared here");
	err.emit();
	self.uninsert_lifetime_on_error(lifetime, def.unwrap());
	}

but the semantics about what we're allowed to capture there are slightly different, so I'm leaving that untouched.

Fixes #115474