less opt in const param of

src/test/ui/const-generics/enum-variants.rs

@@ -0,0 +1,24 @@
+// check-pass
+pub enum Foo<const N: usize> {
+    Variant,
+    Variant2(),
+    Variant3{},
+}
+
+struct Bar<const N: usize>;
+struct Bar2<const N: usize>();
+struct Bar3<const N: usize> {}
+
+fn main() {
+    let _ = Foo::Variant::<1>;
+    let _ = Foo::Variant2::<1>();
+    let _ = Foo::Variant3::<1>{};
+
+    let _ = Foo::<1>::Variant;
+    let _ = Foo::<1>::Variant2();
+    let _ = Foo::<1>::Variant3{};
+
+    let _ = Bar::<1>;
+    let _ = Bar2::<1>();
+    let _ = Bar3::<1>{};
+}