Fix few errors reported by phpstan level 2.

src/Cache/SimpleCache.php

@@ -1,130 +0,0 @@
-<?php
-namespace Cake\Cache;
-
-use Psr\SimpleCache\CacheInterface;
-use Psr\SimpleCache\InvalidArgumentException;
-use Cake\Cache\CacheEngine;
-
-class SimpleCache implements CacheInterface
-{
-    /**
-     * @var \Cake\Cache\CacheEngine
-     */
-    protected $engine;
-
-    public function __construct(CacheEngine $engine)
-    {
-        $this->engine = $engine;
-    }
-
-    public function get($key, $default = null)
-    {
-        $result = $engine->read($key);
-
-        return $result === false ? $default : $result;
-    }
-
-    public function set($key, $value, $ttl = null)
-    {
-        if ($ttl !== null) {
-            $duration = $this->engine->getConfig('duration');
-            $this->engine->setConfig('duration', $this->ttlToSeconds($ttl));
-        }
-
-        try {
-            $result = $this->engine->write($key, $value);
-        } finally {
-            if ($ttl !== null) {
-                $this->engine->setConfig('duration', $duration);
-            }
-        }
-
-        return $result;
-    }
-
-    public function delete($key)
-    {
-        return $this->engine->delete($key);
-    }
-
-    public function clear()
-    {
-        return $this->engine->clear(false);
-    }
-
-    public function getMultiple($keys, $default = null)
-    {
-        $keys   = $this->getAsArray($keys);
-        $result = [];
-
-        foreach ($keys as $key) {
-            $value = $this->engine->get($key, $default);
-        }
-
-        return $result;
-    }
-
-    public function setMultiple($values, $ttl = null)
-    {
-        if ($ttl !== null) {
-            $duration = $this->engine->getConfig('duration');
-            $this->engine->setConfig('duration', $this->ttlToSeconds($ttl));
-        }
-
-        try {
-            $result = true;
-            foreach ($values as $key => $value) {
-                $result = $this->engine->set($key, $value) && $result;
-            }
-        } finally {
-            if ($ttl !== null) {
-                $this->engine->setConfig('duration', $duration);
-            }
-        }
-
-        return $result;
-    }
-
-    public function deleteMultiple($keys)
-    {
-        $keys = $this->getAsArray($keys);
-
-        $result = true;
-        foreach ($keys as $key) {
-            $result = $this->engine->delete($key) && $result;
-        }
-
-        return $result;
-    }
-
-    public function has($key)
-    {
-        return $this->get($key) === null ? false : true;
-    }
-
-    protected function getAsArray($keys)
-    {
-        if ($keys instanceof \Traversable) {
-            return iterator_to_array($keys);
-        }
-
-        if (is_array($keys)) {
-            return $keys;
-        }
-
-        throw new InvalidArgumentException('"$keys" must be an array or instanceof Traversable');
-    }
-
-    /**
-     * @param int|\DateInterval $ttl
-     * @return int seconds
-     */
-    function ttlToSeconds($ttl)
-    {
-        if (is_int($ttl)) {
-            return $ttl;
-        }
-
-        return $ttl->days * 86400 + $ttl->h * 3600 + $ttl->i * 60 + $ttl->s;
-    }
-}

src/Controller/Controller.php

@@ -81,6 +81,7 @@ use RuntimeException;
  * @property \Cake\Controller\Component\PaginatorComponent $Paginator
  * @property \Cake\Controller\Component\RequestHandlerComponent $RequestHandler
  * @property \Cake\Controller\Component\SecurityComponent $Security
+ * @method bool isAuthorized($user)
  * @link https://book.cakephp.org/3.0/en/controllers.html
  */
 class Controller implements EventListenerInterface, EventDispatcherInterface