Laravel 5.6 updates

Travis config update

Removed HHVM script as Laravel no longer support HHVM after releasing 5.3

vendor/symfony/http-kernel/Log/DebugLoggerInterface.php

@@ -11,12 +11,12 @@
 
 namespace Symfony\Component\HttpKernel\Log;
 
+use Symfony\Component\HttpFoundation\Request;
+
 /**
  * DebugLoggerInterface.
  *
  * @author Fabien Potencier <fabien@symfony.com>
- *
- * @method clear() Removes all log records.
  */
 interface DebugLoggerInterface
 {
@@ -27,14 +27,23 @@ interface DebugLoggerInterface
      * timestamp, message, priority, and priorityName.
      * It can also have an optional context key containing an array.
      *
+     * @param Request|null $request The request to get logs for
+     *
      * @return array An array of logs
      */
-    public function getLogs();
+    public function getLogs(/* Request $request = null */);
 
     /**
      * Returns the number of errors.
      *
+     * @param Request|null $request The request to count logs for
+     *
      * @return int The number of errors
      */
-    public function countErrors();
+    public function countErrors(/* Request $request = null */);
+
+    /**
+     * Removes all log records.
+     */
+    public function clear();
 }

vendor/symfony/http-kernel/Log/Logger.php

@@ -37,7 +37,7 @@ class Logger extends AbstractLogger
     private $formatter;
     private $handle;
 
-    public function __construct($minLevel = null, $output = 'php://stderr', callable $formatter = null)
+    public function __construct(string $minLevel = null, $output = 'php://stderr', callable $formatter = null)
     {
         if (null === $minLevel) {
             $minLevel = LogLevel::WARNING;
@@ -80,14 +80,7 @@ class Logger extends AbstractLogger
         fwrite($this->handle, $formatter($level, $message, $context));
     }
 
-    /**
-     * @param string $level
-     * @param string $message
-     * @param array  $context
-     *
-     * @return string
-     */
-    private function format($level, $message, array $context)
+    private function format(string $level, string $message, array $context): string
     {
         if (false !== strpos($message, '{')) {
             $replacements = array();