Merged revisions 20248,20250,20252-20256 via sv...

Merged revisions 20248,20250,20252-20256 via svnmerge from
https://lampsvn.epfl.ch/svn-repos/scala/scala/trunk

........
  r20248 | odersky | 2009-12-20 19:11:24 +0100 (Sun, 20 Dec 2009) | 2 lines

  Closed #2718 and #2765. review by extempore. 
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  r20250 | extempore | 2009-12-21 01:05:03 +0100 (Mon, 21 Dec 2009) | 3 lines

  Minimally integrated the semi-orphaned immutable.Stack into the
collections hierarchy and enabled it in the sequence tests. Closes
#2822. review by community. ........ r20252 | rytz | 2009-12-21 12:20:43
+0100 (Mon, 21 Dec 2009) | 1 line

  close #2820
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  r20253 | odersky | 2009-12-21 13:53:20 +0100 (Mon, 21 Dec 2009) | 1 line

  small cleanups. no review necessary.
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  r20254 | odersky | 2009-12-21 13:54:27 +0100 (Mon, 21 Dec 2009) | 1 line

  Fixed lift 2.8 beta RC4 build problem. The problem was that
tailcalls assumed the wrong type for `this'. Review by dragos. Test in
selftails.scala. ........ r20255 | odersky | 2009-12-21 13:59:36 +0100
(Mon, 21 Dec 2009) | 1 line

  Improved deprecated warnings. No review necessary. ........ r20256 |
phaller | 2009-12-21 16:30:00 +0100 (Mon, 21 Dec 2009) | 1 line

  Documented scala.actors.Futures API. Closes #2506. Review by dubochet.
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1 files changed, 23 insertions, 0 deletions

diff --git a/test/files/pos/selftails.scala b/test/files/pos/selftails.scala
new file mode 100644
index 0000000000..a4253b80c7
--- /dev/null
+++ b/test/files/pos/selftails.scala
@@ -0,0 +1,23 @@
+package net.liftweb.util
+
+/**
+* This trait adds functionality to Scala standard types
+*/
+trait BasicTypesHelpers { self: StringHelpers with ControlHelpers =>
+
+  /**
+   * Compare two arrays of Byte for byte equality.
+   * @return true if two Byte arrays contain the same bytes
+   */
+  def isEq(a: Array[Byte], b: Array[Byte]) = {
+    def eq(a: Array[Byte], b: Array[Byte], pos: Int, len: Int): Boolean = {
+      if (pos == len) true
+      else if (a(pos) != b(pos)) false
+      else eq(a , b, pos + 1, len)
+    }
+    a.length == b.length && eq(a, b, 0, a.length)
+  }
+}
+
+trait StringHelpers
+trait ControlHelpers