[lib/ostruct] Fix Marshal loading

lib/ostruct.rb

@@ -202,10 +202,7 @@ class OpenStruct
   #
   # Provides marshalling support for use by the Marshal library.
   #
-  def marshal_load(x) # :nodoc:
-    x.each_key{|key| new_ostruct_member!(key)}
-    @table = x
-  end
+  alias_method :marshal_load, :update_to_values! # :nodoc:
 
   #
   # Used internally to defined properties on the

test/ostruct/test_ostruct.rb

@@ -333,4 +333,10 @@ class TC_OpenStruct < Test::Unit::TestCase
     assert_equal true, os1.eql?(os2)
     assert_equal 300.42, os2.pension
   end
+
+  def test_marshal
+    o = OpenStruct.new(name: "John Smith", age: 70, pension: 300.42)
+    o2 = Marshal.load(Marshal.dump(o))
+    assert_equal o, o2
+  end
 end