Add test for func_get_args() with named params

This works out of the box

Author: nikic

Zend/tests/named_params/func_get_args.phpt

@@ -0,0 +1,29 @@
+--TEST--
+Behavior of func_get_args() and friends with named parameters
+--FILE--
+<?php
+
+function test($a, $b = 'b', $c = 'c') {
+    var_dump(func_num_args());
+    var_dump(func_get_args());
+    var_dump(func_get_arg(0));
+    var_dump(func_get_arg(1));
+    var_dump(func_get_arg(2));
+}
+
+test(c: 'C', a: 'A');
+
+?>
+--EXPECT--
+int(3)
+array(3) {
+  [0]=>
+  string(1) "A"
+  [1]=>
+  string(1) "b"
+  [2]=>
+  string(1) "C"
+}
+string(1) "A"
+string(1) "b"
+string(1) "C"