Issue #2002250 by dwieeb: Rename Views method get_title() to getTitle().

core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php

@@ -106,7 +106,7 @@ function is_exception($arg = NULL) {
   function exception_title() {
     // If title overriding is off for the exception, return the normal title.
     if (empty($this->options['exception']['title_enable'])) {
-      return $this->get_title();
+      return $this->getTitle();
     }
     return $this->options['exception']['title'];
   }
@@ -926,7 +926,7 @@ function title() {
    * Called by the view object to get the title. This may be set by a
    * validator so we don't necessarily call through to title().
    */
-  function get_title() {
+  public function getTitle() {
     if (isset($this->validated_title)) {
       return $this->validated_title;
     }

core/modules/views/lib/Drupal/views/ViewExecutable.php

@@ -876,7 +876,7 @@ protected function _buildArguments() {
           $arg_title = $argument->exception_title();
         }
         else {
-          $arg_title = $argument->get_title();
+          $arg_title = $argument->getTitle();
           $argument->query($this->display_handler->useGroupBy());
         }