Update to ruby/spec@875a09e

spec/ruby/core/threadgroup/enclose_spec.rb

@@ -1,15 +1,14 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
 
 describe "ThreadGroup#enclose" do
   before :each do
-    @chan1,@chan2 = Channel.new,Channel.new
-    @thread = Thread.new { @chan1 << :go; @chan2.receive }
-    @chan1.receive
+    @q1, @q2 = Queue.new, Queue.new
+    @thread = Thread.new { @q1 << :go; @q2.pop }
+    @q1.pop
   end
 
   after :each do
-    @chan2 << :done
+    @q2 << :done
     @thread.join
   end
 
@@ -18,7 +17,7 @@ describe "ThreadGroup#enclose" do
     default_group = @thread.group
     thread_group.add(@thread)
     thread_group.enclose
-    lambda do
+    -> do
       default_group.add(@thread)
     end.should raise_error(ThreadError)
   end