merges r20432 from trunk into ruby_1_9_1.

* cont.c (rb_fiber_start): calls with exact argument number.
  [ruby-core:20088]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@20437 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/test/ruby/test_fiber.rb b/test/ruby/test_fiber.rb
index fc9a49919a..bf56b2b6d2 100644
--- a/test/ruby/test_fiber.rb
+++ b/test/ruby/test_fiber.rb
@@ -14,6 +14,10 @@ class TestFiber < Test::Unit::TestCase
     assert_equal([:a, :b], Fiber.new{|a, b| [a, b]}.resume(:a, :b))
   end
 
+  def test_argument
+    assert_equal(4, Fiber.new {|i=4| i}.resume)
+  end
+
   def test_term
     assert_equal(:ok, Fiber.new{:ok}.resume)
     assert_equal([:a, :b, :c, :d, :e],