patmat-type-check.scala:18: error: scrutinee is incompatible with pattern type;
 found   : Seq[A]
 required: java.lang.String
  def f1 = "bob".reverse match { case Seq('b', 'o', 'b') => true } // fail
                                         ^
patmat-type-check.scala:19: error: scrutinee is incompatible with pattern type;
 found   : Seq[A]
 required: Array[Char]
  def f2 = "bob".toArray match { case Seq('b', 'o', 'b') => true } // fail
                                         ^
patmat-type-check.scala:23: error: scrutinee is incompatible with pattern type;
 found   : Seq[A]
 required: Test.Bop2
  def f3(x: Bop2) = x match { case Seq('b', 'o', 'b') => true } // fail
                                      ^
patmat-type-check.scala:27: error: scrutinee is incompatible with pattern type;
 found   : Seq[A]
 required: Test.Bop3[T]
  def f4[T](x: Bop3[T]) = x match { case Seq('b', 'o', 'b') => true } // fail
                                            ^
four errors found