cesanta/v7 — pull request #70 by mmikulicic (2014-12-21 23:08:16+00:00)
Title: Simplify AST helpers and cleanup node definitions

Unify all nodes which have an inlined body.
Make sure that code that traverses the AST can skip nodes
with a varint in its body (e.g. future `AST_INT`) and varlen inlined data
(all literals). Fix `ast_dump` to not duplicate the logic of skipping the
right amount of bytes.