Add a regression test for #88649
I noticed that #88649 does not have a regression test, so I add one in this PR.
The test fails with this without #88678:
```
error[E0080]: evaluation of constant value failed
--> /checkout/src/test/ui/consts/issue-88649.rs:13:52
|
LL | Foo::Variant1(x) | Foo::Variant2(x) if x => {}
| ^ StorageLive on a local that was already live
error: aborting due to previous error
For more information about this error, try `rustc --explain E0080`.
```
--- /dev/null
+// check-pass
+#![crate_type = "lib"]
+
+enum Foo {
+ Variant1(bool),
+ Variant2(bool),
+}
+
+const _: () = {
+ let mut n = 0;
+ while n < 2 {
+ match Foo::Variant1(true) {
+ Foo::Variant1(x) | Foo::Variant2(x) if x => {}
+ _ => {}
+ }
+ n += 1;
+ }
+};