anchor.diff:  
   
     /**
  -   * Checks the subtype relationship, denoted by [:<::] in the language
  -   * specification. This is the type relationship used in [:is:] test checks.
  +   * Checks the subtype relationship, denoted by `<:` in the language
  +   * specification.
  +   *
  +   * This is the type relationship used in `is` test checks.
      */
     bool isSubtypeOf(TypeMirror other);
   
     /**
  -   * Checks the assignability relationship, denoted by [:<=>:] in the language
  -   * specification. This is the type relationship tested on assignment in
  -   * checked mode.
  +   * Checks the assignability relationship, denoted by `<=>` in the language
  +   * specification.
  +   *
  +   * This is the type relationship tested on assignment in checked mode.
      */
     bool isAssignableTo(TypeMirror other);
   }
  
positive.code:   Map<Symbol, DeclarationMirror> get declarations;
  
    /**
     * Returns [:true:] if this mirror is equal to [other].
     * Otherwise returns [:false:].
     *
     * The equality holds if and only if
     * (1) [other] is a mirror of the same kind
     * and
     * (2)  The library being reflected by this mirror
     * and the library being reflected by [other]
     * are
     * the same library in the same isolate.
     */
     bool operator ==(other);
  
    /**
     * Returns a list of the imports and exports in this library;
  
negative.code: 
    /**
     * The mixin of this class.
     *
     * If this class is the result of a mixin application of the form S with M,
     * returns a class mirror on M. Otherwise returns a class mirror on
     * [reflectee].
     */
    ClassMirror get mixin;
  
  