Add regression test for #65348

Author: ecstatic-morse

src/test/ui/consts/issue-65348.rs

@@ -0,0 +1,23 @@
+// check-pass
+
+struct Generic<T>(T);
+
+impl<T> Generic<T> {
+    const ARRAY: [T; 0] = [];
+    const NEWTYPE_ARRAY: Generic<[T; 0]> = Generic([]);
+    const ARRAY_FIELD: Generic<(i32, [T; 0])> = Generic((0, []));
+}
+
+pub const fn array<T>() ->  &'static T {
+    &Generic::<T>::ARRAY[0]
+}
+
+pub const fn newtype_array<T>() ->  &'static T {
+    &Generic::<T>::NEWTYPE_ARRAY.0[0]
+}
+
+pub const fn array_field<T>() ->  &'static T {
+    &(Generic::<T>::ARRAY_FIELD.0).1[0]
+}
+
+fn main() {}