Merge "objectcache: fix some makeKey/makeGlobalKey IDEA warnings"

diff --combined includes/libs/objectcache/WANObjectCache.php
index f2048fe,3c91ded..51c4669
--- 1/includes/libs/objectcache/WANObjectCache.php
--- 2/includes/libs/objectcache/WANObjectCache.php
+++ b/includes/libs/objectcache/WANObjectCache.php
@@@ -917,7 -917,7 +917,7 @@@ class WANObjectCache implements IExpiri
                                        // Value existed before with a different version; use variant key.
                                        // Reflect purges to $key by requiring that this key value be newer.
                                        $value = $this->doGetWithSetCallback(
 -                                              'cache-variant:' . md5( $key ) . ":$version",
 +                                              $this->makeGlobalKey( 'WANCache-key-variant', md5( $key ), $version ),
                                                $ttl,
                                                $callback,
                                                // Regenerate value if not newer than $key
@@@ -1388,21 -1388,23 +1388,23 @@@
  
        /**
         * @see BagOStuff::makeKey()
-        * @param string $keys,... Key component (starting with a key collection name)
+        * @param string $class Key class
+        * @param string $component [optional] Key component (starting with a key collection name)
         * @return string Colon-delimited list of $keyspace followed by escaped components of $args
         * @since 1.27
         */
-       public function makeKey() {
+       public function makeKey( $class, $component = null ) {
                return call_user_func_array( [ $this->cache, __FUNCTION__ ], func_get_args() );
        }
  
        /**
         * @see BagOStuff::makeGlobalKey()
-        * @param string $keys,... Key component (starting with a key collection name)
+        * @param string $class Key class
+        * @param string $component [optional] Key component (starting with a key collection name)
         * @return string Colon-delimited list of $keyspace followed by escaped components of $args
         * @since 1.27
         */
-       public function makeGlobalKey() {
+       public function makeGlobalKey( $class, $component = null ) {
                return call_user_func_array( [ $this->cache, __FUNCTION__ ], func_get_args() );
        }