[php][emacs] php-completion.el の補完にSPLクラスを追加

とりあえず補完されればいいのでfunctionsに追加。（classesがなさそう）

;; SPLクラスの補完追加
(phpcmp-db-update
 'functions
 '(
   "AppendIterator"
   "ArrayIterator"
   "ArrayObject"
   "BadFunctionCallException"
   "BadMethodCallException"
   "CachingIterator"
   "Countable"
   "DirectoryIterator"
   "DomainException"
   "EmptyIterator"
   "FilterIterator"
   "InfiniteIterator"
   "InvalidArgumentException"
   "IteratorIterator"
   "LengthException"
   "LimitIterator"
   "LogicException"
   "NoRewindIterator"
   "OuterIterator"
   "OutOfBoundsException"
   "OutOfRangeException"
   "OverflowException"
   "ParentIterator"
   "RangeException"
   "RecursiveArrayIterator"
   "RecursiveCachingIterator"
   "RecursiveDirectoryIterator"
   "RecursiveFilterIterator"
   "RecursiveIterator"
   "RecursiveIteratorIterator"
   "RecursiveRegexIterator"
   "RegexIterator"
   "RuntimeException"
   "SeekableIterator"
   "SimpleXMLIterator"
   "SplFileInfo"
   "SplFileObject"
   "SplObjectStorage"
   "SplObserver"
   "SplSubject"
   "SplTempFileObject"
   "UnderflowException"
   "UnexpectedValueException"
   ))