Merge: nitweb: list linearized definitions

Display linearization lists:

* Mclass linearize all the class definitions
   * linearization of `core::Array` mclassdefs: http://nitweb.moz-code.org/class/core::Array

* MProperty linearize all the prop definitions
    * linearization of `core::Object::hash`: http://nitweb.moz-code.org/property/core::Object::hash

* MClassDef linearize to intro
    * linearization of `core::flat$Array`: http://nitweb.moz-code.org/classdef/core::flat$Array

* MPropdef linearize to intro
    * linearization of `core$Array$Object::SELF`: http://nitweb.moz-code.org/propdef/core$Array$Object::SELF

Pull-Request: #2170
Reviewed-by: Jean Privat <jean@pryen.org>