- Update two `io.write` calls to `IO.print` in doc examples for consistency
- Fix parameter name from `bar` to `arg` in two example method call resolutions
Add two design documents exploring language semantics:
- `beta-style inner.txt` outlines a dispatch mechanism for `inner` method calls
using a two-list approach with method bodies and inheritance chain tracking
- `receiver-less calls.txt` analyzes implicit receiver resolution for bare
function calls, proposing they resolve to `this` and using leading "." for
top-level module function calls