MQE-2669 seprated a run:failed command to generate:failed and run:failed

Author: Shashik.K.Singh

.gitignore

@@ -20,4 +20,6 @@ dev/tests/docs/*
 dev/tests/_output
 dev/tests/functional.suite.yml
 /v2/
-dev/.credentials.example
+dev/.credentials.example
+dev/tests/.phpunit.result.cache
+dev/tests/verification/TestModule/Test/testFile.xml

src/Magento/FunctionalTestingFramework/Console/GenerateTestFailedCommand.php

@@ -28,11 +28,6 @@ class GenerateTestFailedCommand extends BaseGenerateCommand
      */
     private $testsReRunFile;
 
-    /**
-     * @var array
-     */
-    private $failedList = [];
-
     /**
      * Configures the current command.
      *