MAGETWO-69868: Fix static integrity classes tests in Windows #9902

 - Merge Pull Request #9902 from barbazul/magento2:fix-integrity-tests
 - Merged commits:
   1. e9f65d6
   2. ad2bb5c
   3. df27f99
   4. 2b80b9e

Author: Oleksii Korshenko

dev/tests/static/testsuite/Magento/Test/Integrity/ClassesTest.php

@@ -290,7 +290,12 @@ public function testClassReferences()
             function ($file) {
                 $relativePath = str_replace(BP, "", $file);
                 // Due to the examples given with the regex patterns, we skip this test file itself
-                if ($relativePath == "/dev/tests/static/testsuite/Magento/Test/Integrity/ClassesTest.php") {
+                if (
+                    preg_match(
+                        '/\/dev\/tests\/static\/testsuite\/Magento\/Test\/Integrity\/ClassesTest.php$/',
+                        $relativePath
+                    )
+                ) {
                     return;
                 }
                 $contents = file_get_contents($file);
@@ -601,7 +606,7 @@ public function testCoversAnnotation()
         $errors = [];
         $filesToTest = $files->getPhpFiles(Files::INCLUDE_TESTS);
 
-        if (($key = array_search(__FILE__, $filesToTest)) !== false) {
+        if (($key = array_search(str_replace('\\', '/', __FILE__), $filesToTest)) !== false) {
             unset($filesToTest[$key]);
         }