RPC: Terminology redux
Discussion here: !1160 (comment 2899769)
Key point is this:
I don't care for the "reference" name, since 'reference' already has a lot of meanings in Rust; maybe we can brainstorm a bit more. I'll try to think of ideas.
Whatever (new or old) names we use should be used in the Rust codebase as well as in the spec.