Rename HandlerInner::delay_span_bug as HandlerInner::span_delayed_bug.

Because the corresponding `Level` is `DelayedBug` and `span_delayed_bug`
follows the pattern used everywhere else: `span_err`, `span_warning`,
etc.

compiler/rustc_hir_analysis/src/coherence/orphan.rs

@@ -453,7 +453,7 @@ fn lint_auto_trait_impl<'tcx>(
     impl_def_id: LocalDefId,
 ) {
     if trait_ref.args.len() != 1 {
-        tcx.sess.diagnostic().delay_span_bug(
+        tcx.sess.diagnostic().span_delayed_bug(
             tcx.def_span(impl_def_id),
             "auto traits cannot have generic parameters",
         );

compiler/rustc_hir_analysis/src/coherence/unsafety.rs

@@ -82,7 +82,7 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
 
             (_, _, Unsafety::Unsafe, hir::ImplPolarity::Negative(_)) => {
                 // Reported in AST validation
-                tcx.sess.delay_span_bug(item.span, "unsafe negative impl");
+                tcx.sess.span_delayed_bug(item.span, "unsafe negative impl");
             }
             (_, _, Unsafety::Normal, hir::ImplPolarity::Negative(_))
             | (Unsafety::Unsafe, _, Unsafety::Unsafe, hir::ImplPolarity::Positive)