many minor parfait fixes

test/parfait/test_dictionary.rb

@@ -5,10 +5,10 @@ class TestDictionary < MiniTest::Test
   def setup
     @lookup = ::Parfait::Dictionary.new
   end
-  def test_list_create
+  def test_dict_create
     assert @lookup.empty?
   end
-  def test_empty_list_doesnt_return
+  def test_empty_dict_doesnt_return
     assert_equal nil , @lookup.get(3)
     assert_equal nil , @lookup.get(:any)
   end

test/parfait/test_object.rb

@@ -6,16 +6,16 @@ class TestObject < MiniTest::Test
      @object = ::Parfait::Object.new_object
   end
 
-  def test_list_create
+  def test_object_create
     assert_equal 1 ,  @object.internal_object_length
   end
 
-  def test_list_grow
+  def test_object_grow
     @object.internal_object_grow( 2 )
     assert_equal 2 ,  @object.internal_object_length
   end
 
-  def test_empty_list_doesnt_return
+  def test_empty_object_doesnt_return
     assert_equal nil ,  @object.internal_object_get(3)
   end