* lib/rubygems*: Updated to RubyGems 2.0

* test/rubygems*:  ditto.

* common.mk (prelude):  Updated for RubyGems 2.0 source rearrangement.

* tool/change_maker.rb:  Allow invalid UTF-8 characters in source
  files.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/rubygems/test_gem_package_old.rb

@@ -0,0 +1,37 @@
+require 'rubygems/test_case'
+require 'rubygems/simple_gem'
+
+class TestGemPackageOld < Gem::TestCase
+
+  def setup
+    super
+
+    open 'old_format.gem', 'wb' do |io|
+      io.write SIMPLE_GEM
+    end
+
+    @package = Gem::Package::Old.new 'old_format.gem'
+    @destination = File.join @tempdir, 'extract'
+  end
+
+  def test_contents
+    assert_equal %w[lib/foo.rb lib/test.rb lib/test/wow.rb], @package.contents
+  end
+
+  def test_extract_files
+    @package.extract_files @destination
+
+    extracted = File.join @destination, 'lib/foo.rb'
+    assert_path_exists extracted
+
+    mask = 0100644 & (~File.umask)
+
+    assert_equal mask, File.stat(extracted).mode unless win_platform?
+  end
+
+  def test_spec
+    assert_equal 'testing', @package.spec.name
+  end
+
+end
+