Revert "Revert "Rollup merge of #98582 - oli-obk:unconstrained_opaque_type, r=estebank""

This reverts commit 4a742a691e.
2022-07-27 11:58:34 +00:00
parent 5d664f7a8f
commit 40e2de8c41
30 changed files with 250 additions and 37 deletions
--- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
+++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
@@ -2146,7 +2146,9 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                            }
                            StorageDeadOrDrop::Destructor(_) => kind,
                        },
-                        ProjectionElem::Field(..) | ProjectionElem::Downcast(..) => {
+                        ProjectionElem::OpaqueCast { .. }
+                        | ProjectionElem::Field(..)
+                        | ProjectionElem::Downcast(..) => {
                            match place_ty.ty.kind() {
                                ty::Adt(def, _) if def.has_dtor(tcx) => {
                                    // Report the outermost adt with a destructor