remove FieldDef

and on_field_def , :field_def and fixed all related tests
local variables will have to be determined outside the typed layer

lib/typed/compiler.rb

@@ -3,7 +3,7 @@ require_relative "tree"
 module Typed
 
   CompilerModules = [ "assignment" , "basic_values" , "call_site",
-                      "class_statement" , "collections" , "field_def" , "field_access",
+                      "class_statement" , "collections" , "field_access",
                       "function_statement" , "if_statement" , "name_expression" ,
                       "operator_expression" , "return_statement", "statement_list",
                       "while_statement"]
@@ -98,7 +98,6 @@ module Typed
     def create_method( class_name , method_name , args = {})
       raise "create_method #{class_name}.#{class_name.class}" unless class_name.is_a? Symbol
       clazz = Register.machine.space.get_class_by_name! class_name
-      raise "No such class #{class_name}" unless clazz
       create_method_for( clazz.instance_type , method_name , args)
     end
 

lib/typed/tree/assignment.rb

@@ -6,9 +6,5 @@ module Typed
         @name , @value = n , v
       end
     end
-
-    class FieldDef < Statement
-      attr_accessor :name , :type , :value
-    end
   end
 end

lib/typed/tree/to_code.rb

@@ -40,15 +40,6 @@ module Typed
       params
     end
 
-    def on_field_def statement
-      type , name , value = *statement
-      w = Tree::FieldDef.new()
-      w.type = type
-      w.name = process(name)
-      w.value = process(value) if value
-      w
-    end
-
     def on_while_statement statement
       branch_type , condition , statements = *statement
       w = Tree::WhileStatement.new()