prepare for Dotty: avoid ambiguities

Author: SethTisue

core/src/main/scala/scala/collection/parallel/mutable/ParHashMap.scala

@@ -229,7 +229,7 @@ extends scala.collection.parallel.BucketCombiner[(K, V), ParHashMap[K, V], Defau
     _loadFactor = lf
     table = new Array[HashEntry[K, DefaultEntry[K, V]]](capacity(sizeForThreshold(_loadFactor, numelems)))
     tableSize = 0
-    seedvalue = _seedvalue
+    this.seedvalue = _seedvalue
     threshold = newThreshold(_loadFactor, table.length)
     sizeMapInit(table.length)
     def setSize(sz: Int) = tableSize = sz

core/src/main/scala/scala/collection/parallel/mutable/ParHashSet.scala

@@ -162,7 +162,7 @@ with scala.collection.mutable.FlatHashTable.HashUtils[T] {
     // TODO parallelize by keeping separate size maps and merging them
     val tbl = new FlatHashTable[T] {
       sizeMapInit(table.length)
-      seedvalue = ParHashSetCombiner.this.seedvalue
+      this.seedvalue = ParHashSetCombiner.this.seedvalue
       for {
         buffer <- buckets
         if buffer ne null
@@ -184,7 +184,7 @@ with scala.collection.mutable.FlatHashTable.HashUtils[T] {
     table = new Array[AnyRef](capacity(FlatHashTable.sizeForThreshold(numelems, _loadFactor)))
     tableSize = 0
     threshold = FlatHashTable.newThreshold(_loadFactor, table.length)
-    seedvalue = inseedvalue
+    this.seedvalue = inseedvalue
     sizeMapInit(table.length)
 
     override def toString = "AFHT(%s)".format(table.length)