#if/#endif lost with v3.0.0-beta-004

[SteveGilham]

Description

The command-line tool just drops the lines beginning with #; the web tool faults differently

Repro code

example

[jindraivanek]

Provided example is not parse-able code, fixed repro.

#if is duplicated and #endif is missing.

[SteveGilham]

My bad -- I thought "all the rest of the file is comment" and forgot the closing (). Actually fixed repro here