retiring ClassField and class_field from typed layer

Creating classes is the responsibility of melon

lib/typed/compiler/class_field.rb

@@ -1,18 +0,0 @@
-module Typed
-  module ClassField
-
-    def on_ClassField statement
-      #type , name , value = *statement
-
-      for_type = @type
-      raise "no type" unless for_type
-      index = for_type.variable_index(statement.name)
-      raise "class field already defined:#{name} for class #{for_type}" if index
-
-      #FIXME should not hack into current type, but create a new
-      for_type.send(:private_add_instance_variable, statement.name , statement.type)
-
-      return nil # statements don't reurn values, only expressions
-    end
-  end
-end