* lib/rubygems: Update to RubyGems HEAD(c202db2).

  this version contains many enhancements see http://git.io/vtNwF
* test/rubygems: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51092 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 9 insertions, 55 deletions

diff --git a/lib/rubygems/util/list.rb b/lib/rubygems/util/list.rb
index 9bc11fe334..6fa767646c 100644
--- a/lib/rubygems/util/list.rb
+++ b/lib/rubygems/util/list.rb
@@ -1,7 +1,13 @@
 module Gem
-  List = Struct.new(:value, :tail)
-
   class List
+    include Enumerable
+    attr_accessor :value, :tail
+
+    def initialize(value = nil, tail = nil)
+      @value = value
+      @tail = tail
+    end
+
     def each
       n = self
       while n
@@ -11,25 +17,7 @@ module Gem
     end
 
     def to_a
-      ary = []
-      n = self
-      while n
-        ary.unshift n.value
-        n = n.tail
-      end
-
-      ary
-    end
-
-    def find
-      n = self
-      while n
-        v = n.value
-        return v if yield(v)
-        n = n.tail
-      end
-
-      nil
+      super.reverse
     end
 
     def prepend(value)
diff --git a/lib/rubygems/util/stringio.rb b/lib/rubygems/util/stringio.rb
deleted file mode 100644
index 2ea69617bc..0000000000
--- a/lib/rubygems/util/stringio.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-class Gem::StringSink
-  def initialize
-    @string = ""
-  end
-
-  attr_reader :string
-
-  def write(s)
-    @string += s
-    s.size
-  end
-
-  def set_encoding(enc)
-    @string.force_encoding enc
-  end
-end
-
-class Gem::StringSource
-  def initialize(str)
-    @string = str.dup
-  end
-
-  def read(count=nil)
-    if count
-      @string.slice!(0,count)
-    else
-      s = @string
-      @string = ""
-      s
-    end
-  end
-
-  alias_method :readpartial, :read
-end