Annotations on declarations aren't allowed

[scabug]

scala> class ann extends scala.annotation.StaticAnnotation
defined class ann

scala> trait T { @ann type X }
defined trait T

scala> type T = { @ann type X }
<console>:1: error: illegal start of declaration
       type T = { @ann type X }
                  ^

scala> class T { @ann def x: Int = ??? }
defined class T

scala> type T = { @ann def x: Int }
<console>:1: error: illegal start of declaration
       type T = { @ann def x: Int }
                  ^

[scabug]

Imported From: https://issues.scala-lang.org/browse/SI-8056?orig=1
Reporter: @xeno-by
Affected Versions: 2.10.3, 2.11.0-M7

[scabug]

@xeno-by said:
Discussion: https://groups.google.com/forum/#!topic/scala-internals/5n07TiCnBZU

[SethTisue]

Scala 3 accepts trait T { @ann type X } but does not accept type T = { @ann def x: Int }