remove MethodCall and thus all virtual instructions

lib/phisol/compiler/call_site.rb

@@ -38,7 +38,7 @@ module Phisol
       method = clazz.get_instance_method(name)
       #puts Virtual.machine.space.get_class_by_name(:Integer).method_names.to_a
       raise "Method not implemented #{me.type}.#{name}" unless method
-      @method.source.add_code Virtual::MethodCall.new( method )
+      Register.issue_call( @method , method )
       ret = use_reg( method.source.return_type )
       # the effect of the method is that the NewMessage Return slot will be filled, return it
       # but move it into a register too

lib/phisol/compiler/function_definition.rb

@@ -42,7 +42,6 @@ module Phisol
 
       kids.to_a.each do |ex|
         ret = process(ex)
-        raise ret.inspect if ret.is_a? Virtual::Instruction
       end
       @method = nil
       # function definition is a statement, does not return any value