Issue #3458062 by TR: Fix "call to undefined method" in D11 test case

Closes #3458062

tests/src/Functional/TypedDataFormWidget/FormWidgetBrowserTestBase.php

@@ -58,7 +58,7 @@ abstract class FormWidgetBrowserTestBase extends BrowserTestBase {
   public function testIsApplicable(): void {
     // Force any tests that extend this class to implement their own version
     // of this function and give a helpful explanation if it is missed.
-    $this->fail('There is no implementation of the mandatory test function: ' . $this->getName());
+    $this->fail('There is no implementation of the mandatory test function: ' . __METHOD__);
   }
 
   /**
@@ -66,7 +66,7 @@ abstract class FormWidgetBrowserTestBase extends BrowserTestBase {
    * @covers ::extractFormValues
    */
   public function testFormEditing(): void {
-    $this->fail('There is no implementation of the mandatory test function: ' . $this->getName());
+    $this->fail('There is no implementation of the mandatory test function: ' . __METHOD__);
   }
 
   /**
@@ -74,7 +74,7 @@ abstract class FormWidgetBrowserTestBase extends BrowserTestBase {
    * @covers ::flagViolations
    */
   public function testValidation(): void {
-    $this->fail('There is no implementation of the mandatory test function: ' . $this->getName());
+    $this->fail('There is no implementation of the mandatory test function: ' . __METHOD__);
   }
 
 }