Functions are having issues with being copied around, especially
between buckets, leading to the scopes getting looped. The program gets
stuck in 'incrementRefCount()'.
It's past my time limit, so I'll keep working on it tomorrow with a
fresh mind.
All function stuff is still untested.
See #163
Parameter lists are read manually, rather than delegating to
parsePrecedence, because that was causing issues.
function bodies are read as block-level statements, just like the entire
files.
They're no-ops in compilation for now, and param types aren't parsed.
'return' keyword needs to be implemented.
Was distracted by bugfixes in v2 and v2-docs.
