[PATCH] extend zend_parse_parameters() functionality (2nd attempt)

Hello,

I propose that a new type, 'Z', be added in order to allow the extension coders
access to the zval** which was available with the now deprecated
zend_get_parameters().

I came to this conclusion after tracing some segfaults to a section of code
similar to this:

zval *zend_value;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zend_value) ==
   FAILURE)
    return;

convert_to_array_ex(&zend_value);

I realized after sifting through the Zend code that the proper handling of zval*
types is just as important as that of the zval's. This modification will
give extension programmers access to legitimate zval*'s and their corresponding
zval.

Zend/zend_API.c RELEASE ver 4.3.1
425c425,434
<

          case 'Z':
                  {
                          zval ***p=va_arg(*va, zval ***);
                          if(Z_TYPE_PP(arg) == IS_NULL && return_null){
                                 *p = NULL;
                          } else {
                                 *p = arg;
                          }
                  }
                  break;

474c483
< case 'z':

                  case 'z': case 'Z':

Josh