fixes from the method argument change

Affects
method creation
argument manipulation
compiler / to_code

lib/typed/compiler/function_statement.rb

@@ -5,9 +5,7 @@ module Typed
       #      return_type , name , parameters, kids , receiver = *statement
       raise "Already in method #{@method}" if @method
 
-      args = statement.parameters.collect do |p|
-        Parfait::Variable.new( *p )
-      end
+      args = statement.parameters
 
       class_method = handle_receiver( statement ) #nil for instance method
 

lib/typed/compiler/name_expression.rb

@@ -12,7 +12,8 @@ module Typed
         end
         # either an argument, so it's stored in message
         if( index = @method.has_arg(name))
-          ret = use_reg @method.arguments[index].value_type
+          ret = use_reg @method.argument_type(index)
+          #puts "For #{name} at #{index} got #{@method.arguments.inspect}"
           add_code Register.get_slot(statement , :message , Parfait::Message.get_indexed(index), ret )
           return ret
         end
@@ -24,7 +25,7 @@ module Typed
 
       def handle_local statement
         index = @method.has_local( statement.name )
-        raise "must define variable '#{name}' before using it" unless index
+        raise "must define variable '#{statement.name}' before using it" unless index
         frame = use_reg :Frame
         add_code Register.get_slot(statement , :message , :frame , frame )
         ret = use_reg @method.locals[index].value_type