Twig Linting doesn't recognize Drupal functions/filters/etc

[dpagini]

My system information:

• Operating system type: OSX
• Operating system version: 10.12.1
• BLT version: 8.6.0-beta1

Output of blt doctor:

+--------------------------+---------------------------------------------------------------------------------+
| Check                    | Outcome                                                                         |
+--------------------------+---------------------------------------------------------------------------------+
| checkDocrootExists       | Found docroot.                                                                  |
| checkCoreExists          | Drupal core exists                                                              |
| checkSettingsFile        | BLT settings are included in settings file.                                     |
| checkLocalSettingsFile   | Found your local settings file.                                                 |
| checkLocalDrushFile      | Found your local drush settings file.                                           |
| checkUri                 | $options['uri'] is set.                                                         |
| checkUriResponse         | Received a response from site local.mysite.com.                       |
| checkFileSystem:%files   | Public files directory is writable.                                             |
| checkFileSystem:%private | Private files directory is not set.                                             |
| checkFileSystem:%temp    | Temporary files directory is writable.                                          |
| checkDbConnection        | Connected to database.                                                          |
| checkDrupalBootstrapped  | Bootstrapped Drupal via drush.                                                  |
| checkDrupalInstalled     | Drupal is installed.                                                            |
| checkCaching:page        | Drupal cache is disabled.                                                       |
| checkCaching:css         | CSS preprocessing is disabled.                                                  |
| checkCaching:js          | JS preprocessing is disabled.                                                   |
| checkNvmExists           | NVM does not exist.                                                             |
|                          |                                                                                 |
|                          | It is recommended that you use NVM to manage multiple versions of NodeJS on one |
|                          | machine.                                                                        |
|                          | Instructions for installing NVM can be found at:                                |
|                          |   https://github.com/creationix/nvm#installation                                |
| checkCiConfig            | Git remotes are set in project.yml.                                             |
| checkComposer:require    | acquia/blt is in composer.json's require object.                                |
| checkComposer:plugins    | hirak/prestissimo plugin for composer is installed.                             |
| checkBehat:exists        | Behat local settings file exists.                                               |
| checkProjectYml:keys     | project.yml has no deprecated keys.                                             |
| checkPhpDateTimezone     | PHP setting for date.timezone is correctly set                                  |
+--------------------------+---------------------------------------------------------------------------------+

When I run this command:

git commit -m "Some commit message"

I get the following output:

      11      */
      12     #}
  >>  13     <img{{ attributes|without('height','width') }} />
  >> Unknown "without" filter. 
      14     
  ERROR  in /Users/dpagini/Websites/mysite/docroot/themes/custom/mytheme/templates/layout/html.html.twig (line 27)

And I expected this to happen:
This is a valid Drupal twig filters, so they should be recognized as such.

Apologies if this was already reported, or even fixed, but I couldn't find another issue that reported the same thing. The twig linting does not recognize drupal twig function such as path() or filters such as without. My commit was still successful, so I think this is just for information for now, but for this to be useful, I dont want to see these types of errors, or else the output here will just be ignored.

[bobbygryzynger]

I can also confirm I'm seeing this on 8.6.0-beta1.

[grasmash]

Yup. Gotta dig into this. Not quite sure how to tell Twig about Drupal's custom filters and functions.

[brooke-heaton]

Not sure if this is related, but I'm getting this error because I'm using twig_tweak:

  ERROR  in /Users/brookeheaton/Sites/naswa/docroot/themes/custom/naswa/templates/paragraph/paragraph--landing-teaser.html.twig (line 10)
      8              {% set nid = content.field_shortcut_url.0['#plain_text'] %}
      9              {% set slink = "node/" ~ nid %}
  >>  10             {% set stitle = drupal_field('title', 'node', nid) %}
  >> Unknown "drupal_field" function. 
      11     {% endif %}
      12     

[brooke-heaton]

per ^^^

drupal_field is a twig_tweak function: https://www.drupal.org/docs/8/modules/twig-tweak/cheat-sheet-8x-2x

Do I need to override this somehow or is my build simply indefinitely broken?