Revert some span_bugs to span_delayed_bug.

Fixes #121503.
Fixes #121597.

compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs

@@ -1331,7 +1331,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> {
             }
         }
 
-        self.tcx.dcx().span_bug(
+        self.tcx.dcx().span_delayed_bug(
             lifetime_ref.ident.span,
             format!("Could not resolve {:?} in scope {:#?}", lifetime_ref, self.scope,),
         );