Multi-arity methods for deftype forms (#536)

* Reorganize

* Change FnMethod to FnArity to better reflect its purpose

* Multi-arity methods for deftype

* Appease our linting overlord

* Fix node defs for 3.6

* Do a thing

* How 'bout that?

* Fix some tests

* Fix properties

* This is very bad

* I do not know what is going on

* ooooooh k

* Fix it

* More test cases

* Static method tests

* Just like home

* automatic for the people

* method test

* Last cases

* Changelog

Author: chrisrink10

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  * Added support for `future`s (#441)
  * Added support for calling Python functions and methods with keyword arguments (#531)
  * Added support for Lisp functions being called with keyword arguments (#528)
+ * Added support for multi-arity methods on `deftype`s (#534)
 
 ### Fixed
  * Fixed a bug where the Basilisp AST nodes for return values of `deftype` members could be marked as _statements_ rather than _expressions_, resulting in an incorrect `nil` return (#523)

docs/reference.rst

@@ -10,4 +10,5 @@ Reference
    specialforms
    compiler
    pyinterop
+   typesandrecords
    cli

docs/typesandrecords.rst

@@ -0,0 +1,16 @@
+.. _types_and_records:
+
+Data Types and Records
+======================
+
+
+.. contents::
+   :depth: 2
+
+Data Types
+----------
+
+
+Records
+-------
+