bug128_129.scala:3: '=' expected but identifier found.
    val x | 1 = 2; // not allowed
          ^
bug128_129.scala:3: illegal start of expression
    val x | 1 = 2; // not allowed
                 ^
bug128_129.scala:10: recursive patterns not allowed
        case PT(a@PT(a)) =>  // not allowed
                     ^
three errors found