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diff --git a/src/library/scala/collection/generic/GenericArrayTagTraversableTemplate.scala b/src/library/scala/collection/generic/GenericArrayTagTraversableTemplate.scala
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+/* __ *\
+** ________ ___ / / ___ Scala API **
+** / __/ __// _ | / / / _ | (c) 2010-2011, LAMP/EPFL **
+** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
+** /____/\___/_/ |_/____/_/ | | **
+** |/ **
+\* */
+
+package scala.collection
+package generic
+
+import mutable.Builder
+import annotation.unchecked.uncheckedVariance
+import language.higherKinds
+
+/** This trait represents collections classes which require array
+ * tags for their element types.
+ *
+ * @author Aleksandar Prokopec
+ * @since 2.8
+ */
+trait GenericArrayTagTraversableTemplate[+A, +CC[X] <: Traversable[X]] extends HasNewBuilder[A, CC[A] @uncheckedVariance] {
+ implicit protected[this] val tag: ArrayTag[A]
+ def arrayTagCompanion: GenericArrayTagCompanion[CC]
+ def genericArrayTagBuilder[B](implicit tag: ArrayTag[B]): Builder[B, CC[B]] = arrayTagCompanion.newBuilder[B]
+ @deprecated("use arrayTagCompanion instead", "2.10.0")
+ def classManifestCompanion: GenericClassManifestCompanion[CC] = arrayTagCompanion
+ @deprecated("use genericArrayTagBuilder instead", "2.10.0")
+ def genericClassManifestBuilder[B](implicit manifest: ClassManifest[B]): Builder[B, CC[B]] = genericArrayTagBuilder[B](manifest)
+}