Rename LayoutCalculator::delay_bug as LayoutCalculator::delayed_bug.

To match with the previous commits.

Author: nnethercote

crates/hir-ty/src/layout.rs

@@ -110,7 +110,7 @@ struct LayoutCx<'a> {
 impl<'a> LayoutCalculator for LayoutCx<'a> {
     type TargetDataLayoutRef = &'a TargetDataLayout;
 
-    fn delay_bug(&self, txt: String) {
+    fn delayed_bug(&self, txt: String) {
         never!("{}", txt);
     }