We don't use tyerr anymore

This however unearthed a bug, hence the FIXME and the workaround.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/ui/pattern/usefulness/issue-71930-type-of-match-scrutinee.rs b/src/test/ui/pattern/usefulness/issue-71930-type-of-match-scrutinee.rs
new file mode 100644
index 00000000000..e2ff9ac87ef
--- /dev/null
+++ b/src/test/ui/pattern/usefulness/issue-71930-type-of-match-scrutinee.rs
@@ -0,0 +1,22 @@
+// check-pass
+
+// In PR 71930, it was discovered that the code to retrieve the inferred type of a match scrutinee
+// was incorrect.
+
+fn f() -> ! {
+    panic!()
+}
+
+fn g() -> usize {
+    match f() { // Should infer type `bool`
+        false => 0,
+        true => 1,
+    }
+}
+
+fn h() -> usize {
+    match f() { // Should infer type `!`
+    }
+}
+
+fn main() {}