[Snek] [keith-packard/snek] e80f0b: Add snek_id_store

[Keith Packard]

  Branch: refs/heads/main
  Home:   https://github.com/keith-packard/snek
  Commit: e80f0b5ca805483914975c62f92edd3cdbae9ce6
      https://github.com/keith-packard/snek/commit/e80f0b5ca805483914975c62f92edd3cdbae9ce6
  Author: Keith Packard <keithp at keithp.com>
  Date:   2022-12-14 (Wed, 14 Dec 2022)

  Changed paths:
    M snek-exec.c
    M snek-frame.c
    M snek-gram.ll
    M snek.h

  Log Message:
  -----------
  Add snek_id_store

Replace the pattern:

	ref = snek_id_ref(id, true);
	if (ref)
		*ref = value

with the new snek_id_store function, saving a bit of space.

Signed-off-by: Keith Packard <keithp at keithp.com>


  Commit: f4c471814cc8278754f3550c02f2fa7a69309781
      https://github.com/keith-packard/snek/commit/f4c471814cc8278754f3550c02f2fa7a69309781
  Author: Keith Packard <keithp at keithp.com>
  Date:   2022-12-14 (Wed, 14 Dec 2022)

  Changed paths:
    M snek-base.builtin
    M snek-gram.ll

  Log Message:
  -----------
  Store most recent repl value in '_'

Just like python, the top-level '_' variable
holds the most recently printed value.

Signed-off-by: Keith Packard <keithp at keithp.com>


Compare: https://github.com/keith-packard/snek/compare/272eca2e4392...f4c471814cc8