[VM/parser] General cleanup needed

[github-actions[bot]]

[VM/parser] General cleanup needed

There are various pieces of commented-out code that make the final result pretty much illegible. Let's clean this up.

https://github.com/arturo-lang/arturo/blob/ce734e7a32c73173910cdf8f533f56be21febe3b/src/vm/parse.nim#L9

######################################################

# TODO(VM/parser) General cleanup needed
#  There are various pieces of commented-out code that make the final result pretty much illegible. Let's clean this up.
#  labels: vm, parser, cleanup

#=======================================
# Libraries
#=======================================
ndex 01d8b6a77..161569525 100644
++ b/src/vm/stack.nim

a2d5b5f611585ce64af777ed73a5f4315164c516