rename for_type to self_type

and split a base class off TypedMethod

test/mom/helper.rb

@@ -30,7 +30,7 @@ module Risc
     def produce_instructions
       assert @expect , "No output given"
       linker = RubyX::RubyXCompiler.new(as_test_main).ruby_to_risc(:interpreter)
-      compiler = linker.assemblers.find{|c| c.method.name == :main and c.method.for_type.object_class.name == :Test}
+      compiler = linker.assemblers.find{|c| c.method.name == :main and c.method.self_type.object_class.name == :Test}
       compiler.instructions
     end
     def check_nil

test/parfait/test_typed_method.rb

@@ -16,7 +16,7 @@ module Parfait
     end
 
     def test_class_for
-      assert_equal :Object , @method.for_type.object_class.name
+      assert_equal :Object , @method.self_type.object_class.name
     end
 
     def test_arg1

test/risc/test_method_compiler.rb

@@ -63,8 +63,8 @@ module Risc
       in_test_vool("def meth; @ivar = 5; @ibar = 4;end")
       test = Parfait.object_space.get_class_by_name(:Test)
       method = test.instance_type.get_method(:meth)
-      assert_equal 1, method.for_type.variable_index(:ivar)
-      assert_equal 2, method.for_type.variable_index(:ibar)
+      assert_equal 1, method.self_type.variable_index(:ivar)
+      assert_equal 2, method.self_type.variable_index(:ibar)
     end
     def test_typed_method_has_one_local
       in_test_vool("def meth; local = 5 ; a = 6;end")

test/support/compiling.rb

@@ -33,7 +33,7 @@ module MomCompile
   def compile_first_method( input )
     ret = compile_method( as_test_main( input ))
     assert_equal Mom::MomCompiler , ret.class
-    compiler = ret.method_compilers.find{|c| c.method.name == :main and c.method.for_type.object_class.name == :Test}
+    compiler = ret.method_compilers.find{|c| c.method.name == :main and c.method.self_type.object_class.name == :Test}
     assert_equal Risc::MethodCompiler , compiler.class
     @method.source.to_mom( compiler )
   end