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t9629.scala:4: error: pattern must be a value: Option[Int]
Note: if you intended to match against the class, try `case _: Option[_]`
case Option[Int] => // error was issued before
^
t9629.scala:5: error: pattern must be a value: Option[Int]
Note: if you intended to match against the class, try `case _: Option[_]`
case Some(Option[Int]) => // error was skipped, patmat issued an internal error
^
t9629.scala:8: error: pattern must be a value: Option[Int]
Note: if you intended to match against the class, try `case _: Option[_]`
case (_, Option[Int]) =>
^
t9629.scala:9: error: pattern must be a value: Option[Int]
Note: if you intended to match against the class, try `case _: Option[_]`
case x @ (y @ Option[Int]) =>
^
four errors found
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