* 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/commands/dependency_command.rb

@@ -61,10 +61,16 @@ use with other commands.
     ss.map { |spec, _| spec }
   end
 
-  def fetch_specs dependency # :nodoc:
+  def fetch_specs name_pattern, dependency # :nodoc:
     specs = []
 
-    specs.concat dependency.matching_specs     if local?
+    if local?
+      specs.concat Gem::Specification.stubs.find_all { |spec|
+        name_pattern =~ spec.name and
+          dependency.requirement.satisfied_by? spec.version
+      }.map(&:to_spec)
+    end
+
     specs.concat fetch_remote_specs dependency if remote?
 
     ensure_specs specs
@@ -72,16 +78,7 @@ use with other commands.
     specs.uniq.sort
   end
 
-  def gem_dependency args, version, prerelease # :nodoc:
-    args << '' if args.empty?
-
-    pattern = if args.length == 1 and args.first =~ /\A\/(.*)\/(i)?\z/m then
-                flags = $2 ? Regexp::IGNORECASE : nil
-                Regexp.new $1, flags
-              else
-                /\A#{Regexp.union(*args)}/
-              end
-
+  def gem_dependency pattern, version, prerelease # :nodoc:
     dependency = Gem::Deprecate.skip_during {
       Gem::Dependency.new pattern, version
     }
@@ -121,10 +118,12 @@ use with other commands.
   def execute
     ensure_local_only_reverse_dependencies
 
-    dependency =
-      gem_dependency options[:args], options[:version], options[:prerelease]
+    pattern = name_pattern options[:args]
 
-    specs = fetch_specs dependency
+    dependency =
+      gem_dependency pattern, options[:version], options[:prerelease]
+
+    specs = fetch_specs pattern, dependency
 
     reverse = reverse_dependencies specs
 
@@ -203,5 +202,16 @@ use with other commands.
     result
   end
 
-end
+  private
 
+  def name_pattern args
+    args << '' if args.empty?
+
+    if args.length == 1 and args.first =~ /\A\/(.*)\/(i)?\z/m then
+      flags = $2 ? Regexp::IGNORECASE : nil
+      Regexp.new $1, flags
+    else
+      /\A#{Regexp.union(*args)}/
+    end
+  end
+end