* 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

lib/rubygems/resolver/dependency_request.rb

@@ -67,6 +67,10 @@ class Gem::Resolver::DependencyRequest
     @dependency.name
   end
 
+  def type
+    @dependency.type
+  end
+
   ##
   # Indicate that the request is for a gem explicitly requested by the user
 
@@ -113,4 +117,3 @@ class Gem::Resolver::DependencyRequest
   end
 
 end
-