Don't double-quote name of namespaced function.

ZEND_NS_NAMED_FE(ns, zend_name, name, arg_info)

was resulting in a function declaration of:

ns\"zend_name"()

including the errant quotes.

This diff corrects that.  There are currently no uses of ZEND_NS_NAMED_FE
in core and reason to believe that there are no uses in the wild either.
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  Don't double-quote name of namespaced function.
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Don't double-quote name of namespaced function.
Merge branch 'PHP-5.5'

* PHP-5.5:
  Don't double-quote name of namespaced function.