Add a new test to check new deprecations

ext/session/tests/deprecations.phpt

@@ -0,0 +1,27 @@
+--TEST--
+Setting deprecated values directly in session_start()
+--EXTENSIONS--
+session
+--SKIPIF--
+<?php include 'skipif.inc'; ?>
+--INI--
+session.use_cookies=0
+session.use_only_cookies=1
+session.use_trans_sid=0
+--FILE--
+<?php
+
+// Expecting no deprecation here
+ini_set("session.use_only_cookie", "1");
+
+// Expecting deprecation here
+session_start([ 'use_cookies' => '0', 'use_only_cookies' => '0', 'use_trans_sid' => '1']);
+?>
+--EXPECTF--
+Deprecated: session_start(): Disabling session.use_only_cookies INI setting is deprecated in %s on line 7
+
+Warning: session_start(): Session ini settings cannot be changed after headers have already been sent in %s on line 7
+
+Warning: session_start(): Setting option "use_trans_sid" failed in %s on line 7
+
+Warning: session_start(): Session cache limiter cannot be sent after headers have already been sent (output started at %s:7) in %s on line 7