lang: Check list size when setting or getting

lang: Move args_len to a runtime calculation

lang: Remove unused newlines

lang: Add notes (comments)

lang: Don't cast types unecessarily

lang: Add reference counting to ObjectList

lang: Use getters and setters for object_list

lang: Use integers for private data to avoid casting void ...

This adds a table for class to bytecode mapping which isn't ideal,
but it's arguably a good thing that's probably needed in the future.

lang: Fix formatting on class calls

lang: Reorganize and clean up C generation

lang: Move class-specific compiler code to its own function

lang: Rename module_call to module_call_bytecode

lang: Move class declaration further down C file

lang: Restructure compiler C output

lang: Start adding classes to the compiler

compile: Check for duplicate function args

lang: Prefix bytecode names with class name

lang: Change function syntax to support classes

lang: Clarify that code blocks are functions

lang: Add module variables

lang: Fix tail calls not dispatching on object_none

lang: Check against None, not truthiness

lang: Clarify denominator is always 1 in bytecode

lang: Remove useless abort

lang: Use an object_list for use_modules

lang: Convert vm to use an object_list

lang: Add an object_list structure

lang: Declare opaque structs for better type safety

lang: Mark tail_obj as not a pointer

lang: Be explicit about ModuleInfo's constness