error: generic parameters may not be used in enum discriminant values
  --> $DIR/variant-discrimiant-no-generics.rs:7:15
   |
LL |     Variant = N,
   |               ^ cannot perform const operation using `N`
   |
   = note: const parameters may not be used in enum discriminant values

error: generic parameters may not be used in enum discriminant values
  --> $DIR/variant-discrimiant-no-generics.rs:12:17
   |
LL |     Variant = { N + 1 },
   |                 ^ cannot perform const operation using `N`
   |
   = note: const parameters may not be used in enum discriminant values

error: generic parameters may not be used in enum discriminant values
  --> $DIR/variant-discrimiant-no-generics.rs:18:37
   |
LL |     Variant = { std::mem::size_of::<T>() as isize },
   |                                     ^ cannot perform const operation using `T`
   |
   = note: type parameters may not be used in enum discriminant values

error: generic parameters may not be used in enum discriminant values
  --> $DIR/variant-discrimiant-no-generics.rs:25:17
   |
LL |         let a: &'a ();
   |                 ^^ cannot perform const operation using `'a`
   |
   = note: lifetime parameters may not be used in enum discriminant values

error: aborting due to 4 previous errors