Fix parsing error on feature with comment and tag (#35)

[ilslv]

Fixes #35
Supersedes #36

Synopsis

Currently parsing fails on:

#comment
@tag
Feature: feature

Solution

The problem is nl() rule currently tries to parse newline and then comment() rule. It leads to a recursion and possible stack overflow and can't parse file, that begins with a comment. Adding a newline to a beginning of the file removes error.

Parse comment first and then newline.

Checklist

• Created PR:
  • In draft mode
  • Name contains Draft: prefix
  • Name contains issue reference
  • Has assignee
• Documentation is updated (if required)
• Tests are updated (if required)
• Changes conform code style
• CHANGELOG entry is added (if required)
• FCM (final commit message) is posted
  • and approved
• Review is completed and changes are approved
• Before merge:
  • Milestone is set
  • PR's name and description are correct and up-to-date
  • Draft: prefix is removed
  • All temporary labels are removed

[ilslv]

FCM

Fix parsing error on feature with comment and tag (#37, #35)