* Remove Bison dependency * Remove pre-generated parser files * Rename build config from no-re2c-bison to no-re2c * Add a simple make_unique implementation * Move handling of module bindings into ir.cc * Simplify lexer - Remove lookahead, the parser handles this now - Unify Token/LexerToken, it only contains terminal values now - Refactor setting token type and value into one function (e.g. LITERAL, RETURN => RETURN_LITERAL) * New Parser - Uses two tokens of lookahead (use Peek(0) or Peek(1)) - Consume() consumes one token of any kind - Match(t) consumes the current token if it matches - PeekMatch(t) returns true iff the token matches, but doesn't consume - Basic error synchronization; plenty of room for improvement here