7 calls to debug()

FieldPluginBase::add_additional_fields in drupal/core/modules/views/lib/Drupal/views/Plugin/views/field/FieldPluginBase.php
Add 'additional' fields to the query.
JoinTest::testExamplePlugin in drupal/core/modules/views/lib/Drupal/views/Tests/Plugin/JoinTest.php
Tests an example join plugin.
Rss::render in drupal/core/modules/views/lib/Drupal/views/Plugin/views/style/Rss.php
Render the display in this style.
SimpleTestTest::stubTest in drupal/core/modules/simpletest/lib/Drupal/simpletest/Tests/SimpleTestTest.php
Test to be run and the results confirmed.
StylePluginBase::render in drupal/core/modules/views/lib/Drupal/views/Plugin/views/style/StylePluginBase.php
Render the display in this style.
ViewExecutable::setDisplay in drupal/core/modules/views/lib/Drupal/views/ViewExecutable.php
Set the display as current.
views_get_handler in drupal/core/modules/views/views.module
Fetch a handler from the data cache.