val p1: suspend
val p2: suspend (a) ->
val p3: suspend (suspend) ->
val p4: suspend (suspend ->
val p5: suspend (a) -> suspend
val p6: suspend a.() ->
val p7: suspend a.(suspend) ->
val p8: a<suspend in a>
val p9: a<in suspend a
val p10: a<in suspend, a>
val p11: a<suspend in a
val p12: a<suspend in