Fix calling unknown methods

Before, when the type was determined, it was assumed that the method can be resolved. But off course tis is not true, as methods may be defined later in the file.
Two solutions for that. One could  (and should) define all methods and only then start to compile. Thus having the type safety.
Or (as now) make a dynamic call and let it fail at runtime.

lib/rubyx/rubyx_compiler.rb

@@ -125,7 +125,6 @@ module RubyX
       parfait = ["object"]
       parfait.each do |file|
         path = File.expand_path("../../parfait/#{file}.rb",__FILE__)
-        puts "Loading #{path}"
         ruby_to_vool(File.read(path))
       end
     end

lib/vool/send_statement.rb

@@ -36,12 +36,13 @@ module Vool
     # - Setting up the next message, with receiver, arguments, and (importantly) return address
     # - a CachedCall , or a SimpleCall, depending on wether the receiver type can be determined
     def to_mom( compiler )
+      puts "Compiling #{self.to_s}"
       @receiver = SelfExpression.new(compiler.receiver_type) if @receiver.is_a?(SelfExpression)
       if(@receiver.ct_type)
-        simple_call(compiler)
-      else
-        cached_call(compiler)
+        method = @receiver.ct_type.resolve_method(self.name)
+        return simple_call(compiler, method) if method
       end
+      cached_call(compiler)
     end
 
     def message_setup(compiler,called_method)
@@ -55,10 +56,7 @@ module Vool
       setup << Mom::ArgumentTransfer.new(self, mom_receive , args )
     end
 
-    def simple_call(compiler)
-      type = @receiver.ct_type
-      called_method = type.resolve_method(@name)
-      raise "No method #{@name} for #{type}" unless called_method
+    def simple_call(compiler, called_method)
       message_setup(compiler,called_method) << Mom::SimpleCall.new(called_method)
     end