Warning: Undefined array key "function" in Drupal\Core\Utility\Error::getLastCaller() (line 130 of core/lib/Drupal/Core/Utility/Error.php).

Problem

Sometimes I see this message on screen: "Warning: Undefined array key "function" in Drupal\Core\Utility\Error::getLastCaller() (line 130 of core/lib/Drupal/Core/Utility/Error.php). "

Steps to reproduce

See #11

Proposition

Need to add checking on key existing.

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet