lang: Use a single number_math call with operations as priv

lang: Add private data to vtable calls ...

This will be useful for re-using calls with compile-time data.

lang: Remove useless stack check

lang: Move bytecode to func.c

lang: Add more code documentation

lang: Abort if vm_stack_drop is too small

lang: Explain compile.py structure

lang: Note that bytecode is auto-generated

lang: Explicitly skip over inline strings

lang: Skip over inline bytecode strings better

lang: Document bytecode.c

lang: Remove unused include

lang: Add simple README

lang: Clarify dispatch_call abort_msg

lang: Add a 'none' object to replace NULL uses

lang: Define Object as a void pointer

lang: Include types.h in object.h

lang: Handle all object allocation in object.c ...

This makes object a purely opaque type now

lang: Fix typo

lang: Check stack depth before accessing elements ...

I tested this code by hand, make sure to do the same if changing.

lang: Remove useless object cleanup checks ...

Once again we assume that we've gotten here correctly based on class data.

lang: Simplify number functions

lang: Check values since we're kind of testing anyway

lang: Add depth checks to compiler calls

lang: Add depth check bytecode

lang: Remove object_class forward declaration

lang: Set extra variables to NULL after dropping

lang: Always place VmState first in function calls

lang: Remove arg_count and rely on stack depth instead

lang: Hide VmState internals