Rollup merge of #92625 - inquisitivecrystal:mirbug-caller, r=michaelw…

…oerister

Add `#[track_caller]` to `mirbug`

When a "'no errors encountered even though `delay_span_bug` issued" error results from the `mirbug` function, the file location information points to the `mirbug` function itself, rather than its caller. This doesn't make sense, since the caller is the real source of the bug. Adding `#[track_caller]` will produce diagnostics that are more useful to anyone fixing the ICE.

compiler/rustc_borrowck/src/type_check/mod.rs

@@ -312,6 +312,7 @@ fn translate_outlives_facts(typeck: &mut TypeChecker<'_, '_>) {
     }
 }
 
+#[track_caller]
 fn mirbug(tcx: TyCtxt<'_>, span: Span, msg: &str) {
     // We sometimes see MIR failures (notably predicate failures) due to
     // the fact that we check rvalue sized predicates here. So use `delay_span_bug`