Add regression test

Nadrieril · Nadrieril · commit 0e3ec659c710 · 2019-11-12T13:28:07.000Z
diff --git a/src/test/ui/pattern/usefulness/exhaustive_integer_patterns.rs b/src/test/ui/pattern/usefulness/exhaustive_integer_patterns.rs
@@ -163,4 +163,10 @@ fn main() {
         BAR => {} // Not detected as unreachable because `try_eval_bits` fails on `BAR`.
         _ => {}
     }
+
+    // Regression test, see https://github.com/rust-lang/rust/pull/66326#issuecomment-552889933
+    match &0 {
+        BAR => {} // ok
+        _ => {}
+    }
 }

Original file line number	Diff line number	Diff line change
`@@ -163,4 +163,10 @@ fn main() {`
`163`	`163`	BAR => {} // Not detected as unreachable because `try_eval_bits` fails on `BAR`.
`164`	`164`	`_ => {}`
`165`	`165`	`}`
	`166`	`+`
	`167`	`+ // Regression test, see https://github.com/rust-lang/rust/pull/66326#issuecomment-552889933`
	`168`	`+ match &0 {`
	`169`	`+ BAR => {} // ok`
	`170`	`+ _ => {}`
	`171`	`+ }`
`166`	`172`	`}`