Fix spurious change

Author: tiif

compiler/rustc_passes/src/errors.rs

@@ -1790,7 +1790,7 @@ pub(crate) struct UnnecessaryPartialStableFeature {
 #[derive(LintDiagnostic)]
 #[diag(passes_ineffective_unstable_impl)]
 #[note]
-pub(crate) struct IneffectiveUnstableFeature;
+pub(crate) struct IneffectiveUnstableImpl;
 
 #[derive(LintDiagnostic)]
 #[diag(passes_unused_assign)]

compiler/rustc_passes/src/stability.rs

@@ -821,7 +821,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'tcx> {
                                 INEFFECTIVE_UNSTABLE_TRAIT_IMPL,
                                 item.hir_id(),
                                 span,
-                                errors::IneffectiveUnstableFeature,
+                                errors::IneffectiveUnstableImpl,
                             );
                         }
                     }