Replace a bool with a Result<(), ErrorGuaranteed>

compiler/rustc_hir_typeck/src/pat.rs

@@ -1256,7 +1256,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
  subpats,
  &variant.fields.raw,
  expected,
- had_err.is_err(),
+ had_err,
  );
  on_error(e);
  return Ty::new_error(tcx, e);
@@ -1272,7 +1272,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
  subpats: &'tcx [Pat<'tcx>],
  fields: &'tcx [ty::FieldDef],
  expected: Ty<'tcx>,
- had_err: bool,
+ had_err: Result<(), ErrorGuaranteed>,
  ) -> ErrorGuaranteed {
  let subpats_ending = pluralize!(subpats.len());
  let fields_ending = pluralize!(fields.len());
@@ -1329,7 +1329,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
  // #67037: only do this if we could successfully type-check the expected type against
  // the tuple struct pattern. Otherwise the args could get out of range on e.g.,
  // `let P() = U;` where `P != U` with `struct P<T>(T);`.
- (ty::Adt(_, args), [field], false) => {
+ (ty::Adt(_, args), [field], Ok(())) => {
  let field_ty = self.field_ty(pat_span, field, args);
  match field_ty.kind() {
  ty::Tuple(fields) => fields.len() == subpats.len(),