fixes from the method argument change

Affects
method creation
argument manipulation
compiler / to_code

test/typed/expressions/test_vars.rb

@@ -24,7 +24,7 @@ module Register
     end
 
     def test_args
-      Register.machine.space.get_main.arguments.push Parfait::Variable.new(:Integer , :bar)
+      Register.machine.space.get_main.add_argument(:bar , :Integer)
       @input    = s(:name, :bar)
       @output = Register::RegisterValue
       check

test/typed/parfait/test_class.rb

@@ -8,7 +8,7 @@ class TestClass < MiniTest::Test
   end
 
   def foo_method for_class = :Try
-    args = Parfait.new_list [ Parfait::Variable.new(:Integer , :bar )]
+    args = Parfait::Type.new_for_hash( @try , { bar: :Integer})
     ::Parfait::TypedMethod.new @space.get_class_by_name(for_class) , :foo , args
   end
 
@@ -42,7 +42,8 @@ class TestClass < MiniTest::Test
     end
   end
   def test_create_method
-    @try.create_instance_method :bar, Parfait.new_list( [ Parfait::Variable.new(:Integer , :bar )])
+    args = Parfait::Type.new_for_hash( @try , { bar: :Integer})
+    @try.create_instance_method :bar, args
     assert_equal ":bar" , @try.method_names.inspect
   end
   def test_method_get

test/typed/parfait/test_meta.rb

@@ -8,7 +8,7 @@ class TestMeta < MiniTest::Test
   end
 
   def foo_method for_class = :Try
-    args = Parfait.new_list [ Parfait::Variable.new(:Integer , :bar )]
+    args = Parfait::Type.new_for_hash( @try , { bar: :Integer})
     ::Parfait::TypedMethod.new @space.get_class_by_name(for_class) , :foo , args
   end
 
@@ -24,7 +24,8 @@ class TestMeta < MiniTest::Test
   end
 
   def test_create_method
-      @try.create_instance_method :bar, Parfait.new_list( [ Parfait::Variable.new(:Integer , :bar )])
+      args = Parfait::Type.new_for_hash( @try , { bar: :Integer})
+      @try.create_instance_method :bar, args
       assert_equal ":bar" , @try.method_names.inspect
     end
   def test_add_method

test/typed/statements/test_assign.rb

@@ -58,7 +58,7 @@ class TestAssignStatement < MiniTest::Test
   end
 
   def test_assign_arg
-    Register.machine.space.get_main.arguments.push Parfait::Variable.new(:Integer , :blar)
+    Register.machine.space.get_main.add_argument(:blar , :Integer)
     @input = s(:statements, s(:assignment, s(:name, :blar), s(:int, 5)))
     @expect =  [Label, LoadConstant, SetSlot, Label, FunctionReturn]
     was = check
@@ -69,7 +69,7 @@ class TestAssignStatement < MiniTest::Test
 
   def test_arg_get
     # have to define bar externally, just because redefining main. Otherwise that would be automatic
-    Register.machine.space.get_main.arguments.push Parfait::Variable.new(:Integer , :balr)
+    Register.machine.space.get_main.add_argument(:balr , :Integer)
     @input = s(:statements, s(:return, s(:name, :balr)))
     @expect =   [Label, GetSlot, SetSlot, Label, FunctionReturn]
     was = check