Remove hard-coded file count in language server test.

Author: adduc

tests/LanguageServerTest.php

@@ -57,7 +57,7 @@ public function testIndexingWithDirectFileAccess()
             if ($msg->body->method === 'window/logMessage' && $promise->state === Promise::PENDING) {
                 if ($msg->body->params->type === MessageType::ERROR) {
                     $promise->reject(new Exception($msg->body->params->message));
-                } else if (strpos($msg->body->params->message, 'All 27 PHP files parsed') !== false) {
+                } else if (preg_match('/All [0-9]+ PHP files parsed/', $msg->body->params->message)) {
                     $promise->fulfill();
                 }
             }
@@ -103,7 +103,7 @@ public function testIndexingWithFilesAndContentRequests()
                     if ($promise->state === Promise::PENDING) {
                         $promise->reject(new Exception($msg->body->params->message));
                     }
-                } else if (strpos($msg->body->params->message, 'All 27 PHP files parsed') !== false) {
+                } else if (preg_match('/All [0-9]+ PHP files parsed/', $msg->body->params->message)) {
                     $promise->fulfill();
                 }
             }