fix(vim.mpack): rename pack/unpack => encode/decode #16175

Problem:
1. "unpack" has an unrelated meaning in Lua:
   https://www.lua.org/manual/5.1/manual.html#pdf-unpack
2. We already have msgpackparse()/msgpackdump() and
   json_encode()/json_decode(), so introducing another name for the same
   thing is entropy.

Solution:
- Rename vim.mpack.pack/unpack => vim.mpack.encode/decode

Caveat:
This is incongruent with the `Unpacker` and `Packer` functions.
- It's probably too invasive to rename those.
- They also aren't part of our documented interface.
- This commit is "reversible" in the sense that we can always revert
  it and add `vim.mpack.encode/decode` as _aliases_ to
  `vim.mpack.pack/unpack`, at any time in the future, if we want
  stricter fidelity with upstream libmpack. Meanwhile,
  `vim.mpack.encode/decode` is currently the total _documented_
  interface of `vim.mpack`, so this change serves the purpose of
  consistent naming in the Nvim stdlib.

0 files changed, 0 insertions, 0 deletions