diff --git a/core/includes/install.inc b/core/includes/install.inc
index 083776a5377030be7ea87ae8f0b5400b4aefeb5d..6d2c29126048d71cf58363f2b873b4b9db51b158 100644
--- a/core/includes/install.inc
+++ b/core/includes/install.inc
@@ -511,7 +511,7 @@ function drupal_install_system($install_state) {
   $kernel = \Drupal::service('kernel');
   $kernel->shutdown();
   // Have installer rebuild from the disk, rather then building from scratch.
-  $kernel->rebuildContainer(FALSE);
+  $kernel->rebuildContainer();
   // Reboot the kernel with new container.
   $kernel->boot();
   $kernel->preHandle($request);
diff --git a/core/modules/menu_ui/tests/src/Functional/MenuUiTest.php b/core/modules/menu_ui/tests/src/Functional/MenuUiTest.php
index 586e545a1888dd4f231c61e38023a09c3fb0e18a..5a6621b4e3b8278037062045225f73c5378f3678 100644
--- a/core/modules/menu_ui/tests/src/Functional/MenuUiTest.php
+++ b/core/modules/menu_ui/tests/src/Functional/MenuUiTest.php
@@ -1130,21 +1130,21 @@ private function verifyAccess($response = 200) {
     $this->drupalGet('admin/help/menu');
     $this->assertSession()->statusCodeEquals($response);
     if ($response == 200) {
-      $this->assertSession()->pageTextContains('Menu', 'Menu help was displayed');
+      $this->assertSession()->pageTextContains('Menu');
     }
 
     // View menu build overview page.
     $this->drupalGet('admin/structure/menu');
     $this->assertSession()->statusCodeEquals($response);
     if ($response == 200) {
-      $this->assertSession()->pageTextContains('Menus', 'Menu build overview page was displayed');
+      $this->assertSession()->pageTextContains('Menus');
     }
 
     // View tools menu customization page.
     $this->drupalGet('admin/structure/menu/manage/' . $this->menu->id());
     $this->assertSession()->statusCodeEquals($response);
     if ($response == 200) {
-      $this->assertSession()->pageTextContains('Tools', 'Tools menu page was displayed');
+      $this->assertSession()->pageTextContains('Tools');
     }
 
     // View menu edit page for a static link.
@@ -1152,14 +1152,14 @@ private function verifyAccess($response = 200) {
     $this->drupalGet('admin/structure/menu/link/' . $item->getPluginId() . '/edit');
     $this->assertSession()->statusCodeEquals($response);
     if ($response == 200) {
-      $this->assertSession()->pageTextContains('Edit menu item', 'Menu edit page was displayed');
+      $this->assertSession()->pageTextContains('Edit menu item');
     }
 
     // View add menu page.
     $this->drupalGet('admin/structure/menu/add');
     $this->assertSession()->statusCodeEquals($response);
     if ($response == 200) {
-      $this->assertSession()->pageTextContains('Menus', 'Add menu page was displayed');
+      $this->assertSession()->pageTextContains('Menus');
     }
   }
 
diff --git a/core/modules/search/tests/src/Functional/SearchMultilingualEntityTest.php b/core/modules/search/tests/src/Functional/SearchMultilingualEntityTest.php
index b6a939b0b831fc7d9e014bc07e7cd5137f375a39..55855f00c775c54826f7ab7ea985e3c84568d5f6 100644
--- a/core/modules/search/tests/src/Functional/SearchMultilingualEntityTest.php
+++ b/core/modules/search/tests/src/Functional/SearchMultilingualEntityTest.php
@@ -159,7 +159,7 @@ public function testMultilingualSearch() {
     // Make sure index throttle is high enough, via the UI.
     $this->drupalGet('admin/config/search/pages');
     $this->submitForm(['cron_limit' => 20], 'Save configuration');
-    $this->assertEquals(20, $this->config('search.settings')->get('index.cron_limit', 100), 'Config setting was saved correctly');
+    $this->assertEquals(20, $this->config('search.settings')->get('index.cron_limit'), 'Config setting was saved correctly');
     // Get a new search plugin, to make sure it has this setting.
     $this->plugin = $this->container->get('plugin.manager.search')->createInstance('node_search');
 
diff --git a/core/modules/system/tests/src/Functional/Menu/MenuRouterTest.php b/core/modules/system/tests/src/Functional/Menu/MenuRouterTest.php
index 06980db0efd1cc9e20900a06639e63dbeb39d7ba..6724fc7cd5259097aed902e28d183bc916fc547f 100644
--- a/core/modules/system/tests/src/Functional/Menu/MenuRouterTest.php
+++ b/core/modules/system/tests/src/Functional/Menu/MenuRouterTest.php
@@ -82,8 +82,8 @@ protected function doTestHookMenuIntegration() {
    */
   protected function doTestTitleCallbackFalse() {
     $this->drupalGet('test-page');
-    $this->assertSession()->pageTextContains('A title with @placeholder', 'Raw text found on the page');
-    $this->assertSession()->pageTextNotContains('A title with some other text', 'Text with placeholder substitutions not found.');
+    $this->assertSession()->pageTextContains('A title with @placeholder');
+    $this->assertSession()->pageTextNotContains('A title with some other text');
   }
 
   /**
diff --git a/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php b/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php
index f7113a619da67ef6688aefa3b6eb76eb4c5049dd..0bc84181d1059fa2766600b16149609af1e3fde7 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php
@@ -51,9 +51,9 @@ public function testDateFormatXss() {
     ]);
     $date_format->save();
     $this->drupalGet('admin/config/regional/date-time');
-    $assert->assertEscaped('<script>alert("XSS");</script>', 'The date format was properly escaped');
+    $assert->assertEscaped('<script>alert("XSS");</script>');
     $this->drupalGet('admin/config/regional/date-time/formats/manage/xss_short');
-    $assert->assertEscaped('<script>alert("XSS");</script>', 'The date format was properly escaped');
+    $assert->assertEscaped('<script>alert("XSS");</script>');
 
     // Add a new date format with HTML in it.
     $this->drupalGet('admin/config/regional/date-time/formats/add');
diff --git a/core/modules/views/src/Plugin/views/cache/CachePluginBase.php b/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
index d372baedc2050d7c670c97a2925b3b17e84de228..6cd39aa1a31cdf959ee77e1ab7960a677af17200 100644
--- a/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
+++ b/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
@@ -146,7 +146,7 @@ public function cacheGet($type) {
             // Load entities for each result.
             $this->view->query->loadEntities($this->view->result);
             $this->view->total_rows = $cache->data['total_rows'];
-            $this->view->setCurrentPage($cache->data['current_page'], TRUE);
+            $this->view->setCurrentPage($cache->data['current_page']);
             $this->view->execute_time = 0;
             return TRUE;
           }
diff --git a/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php b/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
index ef24bb6eee649d0994c9e751152bffcb7ac4369e..dd2014e86a986ab12b1e79f3e4ff380b2930f3b2 100644
--- a/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
+++ b/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
@@ -2171,7 +2171,7 @@ protected function getMoreUrl() {
    * {@inheritdoc}
    */
   public function render() {
-    $rows = (!empty($this->view->result) || $this->view->style_plugin->evenEmpty()) ? $this->view->style_plugin->render($this->view->result) : [];
+    $rows = (!empty($this->view->result) || $this->view->style_plugin->evenEmpty()) ? $this->view->style_plugin->render() : [];
 
     $element = [
       '#theme' => $this->themeFunctions(),
diff --git a/core/modules/views/tests/src/Unit/Controller/ViewAjaxControllerTest.php b/core/modules/views/tests/src/Unit/Controller/ViewAjaxControllerTest.php
index 6ef1a332fef51881f405fe3a00bff6d4a2652511..aff3dc6696daa9ee5d82dded1023d2fa8518ed5b 100644
--- a/core/modules/views/tests/src/Unit/Controller/ViewAjaxControllerTest.php
+++ b/core/modules/views/tests/src/Unit/Controller/ViewAjaxControllerTest.php
@@ -336,7 +336,7 @@ public function testAjaxViewWithPager() {
       ->disableOriginalConstructor()
       ->getMock();
     $display_handler->expects($this->once())
-      ->method('setOption', '0')
+      ->method('setOption')
       ->with($this->equalTo('pager_element'));
 
     $display_collection = $this->getMockBuilder('Drupal\views\DisplayPluginCollection')
diff --git a/core/tests/Drupal/Tests/Core/DrupalKernel/DrupalKernelTest.php b/core/tests/Drupal/Tests/Core/DrupalKernel/DrupalKernelTest.php
index 95630123c3483bc0dc91faf357f40f94d6adc963..1e2c1e7c60e319351d62c1781b528ba7f8d364d2 100644
--- a/core/tests/Drupal/Tests/Core/DrupalKernel/DrupalKernelTest.php
+++ b/core/tests/Drupal/Tests/Core/DrupalKernel/DrupalKernelTest.php
@@ -135,8 +135,8 @@ public function testFindSitePath() {
     $request->server->set('SERVER_NAME', 'www.example.org');
     $request->server->set('SERVER_PORT', '8888');
     $request->server->set('SCRIPT_NAME', '/index.php');
-    $this->assertEquals('sites/example', DrupalKernel::findSitePath($request, TRUE, $vfs_root->url('drupal_root')));
-    $this->assertEquals('sites/example', DrupalKernel::findSitePath($request, FALSE, $vfs_root->url('drupal_root')));
+    $this->assertEquals('sites/example', DrupalKernel::findSitePath($request, TRUE, $vfs_root->url()));
+    $this->assertEquals('sites/example', DrupalKernel::findSitePath($request, FALSE, $vfs_root->url()));
   }
 
   /**
diff --git a/core/tests/Drupal/Tests/Core/Entity/BaseFieldDefinitionTest.php b/core/tests/Drupal/Tests/Core/Entity/BaseFieldDefinitionTest.php
index 7583848a1ecf68977abc5d2a73df09eb6e0ca0c6..1cafe065f7b0eb57a54ee7644588bbbd108a5af3 100644
--- a/core/tests/Drupal/Tests/Core/Entity/BaseFieldDefinitionTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/BaseFieldDefinitionTest.php
@@ -220,7 +220,7 @@ public function testFieldInitialValue() {
     // Set the field item list class to be used to avoid requiring the typed
     // data manager to retrieve it.
     $definition->setClass('Drupal\Core\Field\FieldItemList');
-    $this->assertEquals($expected_default_value, $definition->getInitialValue($entity));
+    $this->assertEquals($expected_default_value, $definition->getInitialValue());
 
     $data_definition = $this->getMockBuilder('Drupal\Core\TypedData\DataDefinition')
       ->disableOriginalConstructor()
@@ -232,19 +232,19 @@ public function testFieldInitialValue() {
 
     // Set default value only with a literal.
     $definition->setInitialValue($default_value['value']);
-    $this->assertEquals($expected_default_value, $definition->getInitialValue($entity));
+    $this->assertEquals($expected_default_value, $definition->getInitialValue());
 
     // Set default value with an indexed array.
     $definition->setInitialValue($expected_default_value);
-    $this->assertEquals($expected_default_value, $definition->getInitialValue($entity));
+    $this->assertEquals($expected_default_value, $definition->getInitialValue());
 
     // Set default value with an empty array.
     $definition->setInitialValue([]);
-    $this->assertEquals([], $definition->getInitialValue($entity));
+    $this->assertEquals([], $definition->getInitialValue());
 
     // Set default value with NULL.
     $definition->setInitialValue(NULL);
-    $this->assertEquals([], $definition->getInitialValue($entity));
+    $this->assertEquals([], $definition->getInitialValue());
   }
 
   /**
diff --git a/core/tests/Drupal/Tests/Core/Image/ImageTest.php b/core/tests/Drupal/Tests/Core/Image/ImageTest.php
index 80cb15d75162bd21181f79c09c79d92670647f43..53788d4b84b8e10da9f1a90b289d50b0afb31f8e 100644
--- a/core/tests/Drupal/Tests/Core/Image/ImageTest.php
+++ b/core/tests/Drupal/Tests/Core/Image/ImageTest.php
@@ -339,7 +339,7 @@ public function testScaleAndCropWidth() {
       ->method('execute')
       ->will($this->returnArgument(0));
 
-    $ret = $this->image->scaleAndCrop(34, 50, FALSE);
+    $ret = $this->image->scaleAndCrop(34, 50);
     $this->assertEquals(5, $ret['x']);
   }