tests/mir-opt/simplify_aggregate_to_copy_miscompile.set_discriminant.GVN.diff

- // MIR for `set_discriminant` before GVN
+ // MIR for `set_discriminant` after GVN
  
  fn set_discriminant(_1: &mut Value) -> Value {
      let mut _0: Value;
      let mut _2: &Value;
      let mut _3: i32;
  
      bb0: {
          _2 = get::<Value>(copy _1) -> [return: bb1, unwind unreachable];
      }
  
      bb1: {
          _3 = copy (((*_2) as variant#0).0: i32);
          discriminant((*_1)) = 1;
          _0 = Value::V0(copy _3);
          return;
      }
  }