Name tweaks

compiler/rustc_borrowck/src/region_infer/mod.rs

@@ -2059,7 +2059,10 @@ impl<'tcx> RegionInferenceContext<'tcx> {
                     // We currently do not store the `DefId` in the `ConstraintCategory`
                     // for performances reasons. The error reporting code used by NLL only
                     // uses the span, so this doesn't cause any problems at the moment.
-                    Some(ObligationCauseCode::SpannedItem(CRATE_DEF_ID.to_def_id(), predicate_span))
+                    Some(ObligationCauseCode::SpannedWhereClause(
+                        CRATE_DEF_ID.to_def_id(),
+                        predicate_span,
+                    ))
                 } else {
                     None
                 }