anchor.diff:    get IDENTIFIER_PART => WORD | UNDERSCORE;
     get IDENTIFIER => token(IDENTIFIER_START & IDENTIFIER_PART.star());
   
  -  // helpful tokens
  +  // IMAG
     get ANNOTATION => token(string("//@") & LETTER.plus() & COLON & LETTER.plus());
   
     // MP
  
positive.code:     | INT64_T
      | UINT64_T
      | MPZ_T
      | LONG
      | FLOAT
      | DOUBLE
  
negative.code:     | AUTO
      | REGISTER;
  
    /// MP
    /// IMAG : declarator
    get parameterDeclarator => pointer.optional() & IDENTIFIER;
  
    // MP
  