Rollup merge of #98429 - b-naber:use-correct-substs-discriminant-cast, r=lcnr

Use correct substs in enum discriminant cast

Fixes https://github.com/rust-lang/rust/issues/97634

r? ```@lcnr```

1 files changed, 10 insertions, 0 deletions

diff --git a/src/test/ui/const-generics/issues/issue-97634.rs b/src/test/ui/const-generics/issues/issue-97634.rs
new file mode 100644
index 00000000000..422e8de6856
--- /dev/null
+++ b/src/test/ui/const-generics/issues/issue-97634.rs
@@ -0,0 +1,10 @@
+// build-pass
+
+pub enum Register<const N: u16> {
+    Field0 = 40,
+    Field1,
+}
+
+fn main() {
+    let _b = Register::<0>::Field1 as u16;
+}