Add test on visibility of properties on enumeration

tests/property_visibility-enumerate.phpt

@@ -0,0 +1,56 @@
+--TEST--
+Test V8::executeString() : Property visibility - enumerate
+--SKIPIF--
+<?php require_once(dirname(__FILE__) . '/skipif.inc'); ?>
+--FILE--
+<?php
+
+class Foo {
+	private $privBar = "privBar";
+	protected $protBar = "protBar";
+	public $pubBar = "pubBar";
+
+	public function dump() {
+		foreach($this as $key => $value) {
+			echo("$key => ");
+			var_dump($value);
+		}
+	}
+}
+
+$js = new V8Js();
+$js->foo = new Foo();
+
+$script = <<<END
+
+for(var key in PHP.foo) {
+	if(PHP.foo.hasOwnProperty(key)) {
+		var_dump(key);
+
+		if(key[0] === '$') {
+			var_dump(PHP.foo[key]);
+		}
+		else {
+			var_dump("function");
+		}
+	}
+}
+
+END;
+
+$js->executeString($script);
+
+echo "--- PHP ---\n";
+$js->foo->dump();
+?>
+===EOF===
+--EXPECT--
+string(4) "dump"
+string(8) "function"
+string(7) "$pubBar"
+string(6) "pubBar"
+--- PHP ---
+privBar => string(7) "privBar"
+protBar => string(7) "protBar"
+pubBar => string(6) "pubBar"
+===EOF===