Improve span for consider adding an explicit lifetime bound suggestions under NLL

Because NLL borrowck is run after typeck, `in_progress_typeck_results`
was always `None` which was preventing the retrieval of the span to which
the suggestion is suppose to add the lifetime bound.

We now manually pass the `LocalDefId` owner to `construct_generic_bound_failure`
so that under NLL, we give the owner id of the current body.

compiler/rustc_borrowck/src/diagnostics/region_errors.rs

@@ -171,6 +171,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                             None,
                             type_test.generic_kind,
                             lower_bound_region,
+                            self.body.source.def_id().as_local(),
                         ));
                     } else {
                         // FIXME. We should handle this case better. It