fixup! Add SeqSet and SetFromMap implementations

tweak SeqSet linheritance order

Author: NthPortal

src/main/scala/scala/collection/SetFromMap.scala

@@ -46,9 +46,9 @@ private object SetFromMap extends SetFromMapMetaFactory[Map, Set] {
 @SerialVersionUID(3L)
 private class SeqSetFromMap[A](protected[collection] val underlying: SeqMap[A, Unit])
   extends AbstractSet[A]
-  with SeqSet[A]
   with SetFromMapOps.Unknown[A, SeqMap, SeqMap[A, Unit], SeqSetFromMap, SeqSetFromMap[A]]
   with SetFromMapOps.Unsorted[A, SeqMap, SeqSetFromMap]
+  with SeqSet[A]
   with IterableFactoryDefaults[A, SeqSetFromMap]
   with DefaultSerializable {
   protected[this] def fromMap[B](m: SeqMap[B, Unit]): SeqSetFromMap[B] = new SeqSetFromMap(m)

src/main/scala/scala/collection/immutable/SetFromMap.scala

@@ -74,8 +74,8 @@ private object SetFromMap extends SetFromMapMetaFactory[Map, Set] {
 @SerialVersionUID(3L)
 private class SeqSetFromMap[A](protected[collection] val underlying: SeqMap[A, Unit])
   extends AbstractSet[A]
-  with SeqSet[A]
   with SetFromMapOps.Unsorted[A, SeqMap, SeqSetFromMap]
+  with SeqSet[A]
   with IterableFactoryDefaults[A, SeqSetFromMap]
   with DefaultSerializable {
   protected[this] def fromMap[B](m: SeqMap[B, Unit]): SeqSetFromMap[B] =

src/main/scala/scala/collection/mutable/SetFromMap.scala

@@ -79,9 +79,9 @@ private[collection] object SetFromMap extends SetFromMapMetaFactory[Map, Set] {
 @SerialVersionUID(3L)
 private class SeqSetFromMap[A](protected[collection] val underlying: SeqMap[A, Unit])
   extends AbstractSet[A]
-  with SeqSet[A]
   with SetFromMapOps[A, SeqMap, SeqMap[A, Unit], SeqSetFromMap, SeqSetFromMap[A]]
   with SetFromMapOps.Unsorted[A, SeqMap, SeqSetFromMap]
+  with SeqSet[A]
   with IterableFactoryDefaults[A, SeqSetFromMap]
   with DefaultSerializable {
   protected[this] def fromMap[B](m: SeqMap[B, Unit]): SeqSetFromMap[B] = new SeqSetFromMap(m)