- "class" is a macro. It expands to a "module", with calls to MO.
  The "module" AST is like:

  # A module is a "class" without the methods and attributes.
  class Module {
    has $.name          is Str;                     # Module Name;
    has $.body          is Lit::Code;               # body of code
  }

- Macros are implemented in the grammar.
- It might be better to implement syntax for macros first, and then
  implement "token" and "class" using real macros

- Method calls can either be implemented with mo subroutine calls, or native method calls. 
  It depends on the emitter

- mp6-mo should not depend on external syntax sugar, such as Moose

- " our $.class_var; " is not supported, because MP6 does not support 'our'.

TODO:

- Extend the grammar with MO words: 
  Roles, inheritance, etc.

- Compiler bootstrap with MO

- test " Obj.new( attr=>value ) "

- unnamed classes (see 2007-01-02 irc log)

- rename lib/MiniPerl6 to lib/MiniPerl6_MO
  in order to co-exist with mp6-no-mo

DONE:

- "Module" AST
- new "CompUnit" macro
- Class variables
- alias 'create_instance' to 'new'
- test " ::Obj( attr=>value ) " 

FOR LATER:

- 'our'
- containers
- type-checking

- Add a new method to an existing class
  - wait for MO emit_class()