Description:
------------
php_date_timestamp_set()[1] does not properly initialize the
have_date and have_time members of the timelib_time struct. Both
should be 1, but actually are 0.

The supplied test script reveals this behavior in the debugger
only.

I'm not sure whether this should be fixed in
php_date_timestamp_set(), or rather in timelib_update_ts() or
maybe initializetimelib_unixtime2local().

[1] <https://github.com/php/php-src/blob/PHP-7.0.10/ext/date/php_date.c#L3503-L3511>



Test script:
---------------
<?php

date_timestamp_set(date_create(), 1);