do_normalize_predicates: add delay_span_bug

lcnr · lcnr · commit fca7d165be9d · 2020-04-08T23:34:09.000+02:00
diff --git a/src/librustc_trait_selection/traits/mod.rs b/src/librustc_trait_selection/traits/mod.rs
@@ -260,7 +260,7 @@ fn do_normalize_predicates<'tcx>(
             }
         };
         if predicates.needs_infer() {
-            // FIXME: shouldn't we, you know, actually report an error here? or an ICE?
+            tcx.sess.delay_span_bug(span, "encountered inference variables after `fully_resolve`");
             Err(ErrorReported)
         } else {
             Ok(predicates)

Original file line number	Diff line number	Diff line change
`@@ -260,7 +260,7 @@ fn do_normalize_predicates<'tcx>(`
`260`	`260`	`}`
`261`	`261`	`};`
`262`	`262`	`if predicates.needs_infer() {`
`263`		`- // FIXME: shouldn't we, you know, actually report an error here? or an ICE?`
	`263`	+ tcx.sess.delay_span_bug(span, "encountered inference variables after `fully_resolve`");
`264`	`264`	`Err(ErrorReported)`
`265`	`265`	`} else {`
`266`	`266`	`Ok(predicates)`