Rename Views method summary_query() to summaryQuery()

I take this task.

Gang Wang
SUNY Geneseo

Uploading patch.

All these functions should start with "protected function ...". They are used internally by argument plugins.

+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.phpundefined
@@ -803,7 +803,7 @@ function default_summary() {
+  function summaryQuery() {

+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/Formula.phpundefined
@@ -45,7 +45,7 @@ function get_formula() {
+  function summaryQuery() {

+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/ManyToOne.phpundefined
@@ -161,7 +161,7 @@ function title() {
+  function summaryQuery() {

+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/String.phpundefined
@@ -146,7 +146,7 @@ public function buildOptionsForm(&$form, &$form_state) {
+  function summaryQuery() {

Add protected access modifier in front of the functions to adhere to the new OOP standards.

Re-roll with protected.

#8: 2002980-rename-summary_query.patch queued for re-testing.

Committed da5a7ff and pushed to 8.x. Thanks!