7 methods override FilterPluginBase::value_form() in Views (for Drupal 7) 8.3

BooleanOperator::value_form in lib/Drupal/views/Plugin/views/filter/BooleanOperator.php

Options form subform for setting options.

Equality::value_form in lib/Drupal/views/Plugin/views/filter/Equality.php

Provide a simple textfield for equality

HistoryUserTimestamp::value_form in lib/Views/node/Plugin/views/filter/HistoryUserTimestamp.php

Options form subform for setting options.

InOperator::value_form in lib/Drupal/views/Plugin/views/filter/InOperator.php

Options form subform for setting options.

Numeric::value_form in lib/Drupal/views/Plugin/views/filter/Numeric.php

Provide a simple textfield for equality

Search::value_form in lib/Views/search/Plugin/views/filter/Search.php

Provide a simple textfield for equality

String::value_form in lib/Drupal/views/Plugin/views/filter/String.php

Provide a simple textfield for equality