Test & implement PHP-side instantiation of JS generators

tests/generators_from_v8_004.phpt

@@ -0,0 +1,33 @@
+--TEST--
+Test V8::executeString() : Generators V8 -> PHP (instantiate in PHP + foreach)
+--SKIPIF--
+<?php require_once(dirname(__FILE__) . '/skipif.inc'); ?>
+--FILE--
+<?php
+
+$js = <<<EOJS
+function* TheGen() {
+  for(var i = 0; i < 4; i ++) {
+    yield i;
+  }
+}
+
+TheGen;
+EOJS;
+
+$v8 = new V8Js();
+$TheGen = $v8->executeString($js);
+$gen = $TheGen();
+
+foreach($gen as $a) {
+    var_dump($a);
+}
+
+?>
+===EOF===
+--EXPECTF--
+int(0)
+int(1)
+int(2)
+int(3)
+===EOF===

tests/generators_from_v8_005.phpt

@@ -0,0 +1,39 @@
+--TEST--
+Test V8::executeString() : Generators V8 -> PHP (instantiate in PHP + iterate in JS)
+--SKIPIF--
+<?php require_once(dirname(__FILE__) . '/skipif.inc'); ?>
+--FILE--
+<?php
+
+$js = <<<EOJS
+function* TheGen() {
+  for(var i = 0; i < 4; i ++) {
+    yield i;
+  }
+}
+
+TheGen;
+EOJS;
+
+$v8 = new V8Js();
+$TheGen = $v8->executeString($js);
+$gen = $TheGen();
+
+$js = <<<EOJS
+(function(gen) {
+  for(var i of gen) {
+    var_dump(i);
+  }
+})
+EOJS;
+$fn = $v8->executeString($js);
+$fn($gen);
+
+?>
+===EOF===
+--EXPECTF--
+int(0)
+int(1)
+int(2)
+int(3)
+===EOF===

v8js_object_export.cc

@@ -938,7 +938,7 @@ v8::Handle<v8::Value> v8js_hash_to_jsobj(zval *value, v8::Isolate *isolate TSRML
 	}
 
 	/* Special case, passing back object originating from JS to JS */
-	if (ce == php_ce_v8function) {
+	if (ce == php_ce_v8function || ce == php_ce_v8generator) {
 		v8js_v8object *c = Z_V8JS_V8OBJECT_OBJ_P(value);
 
 		if(isolate != c->ctx->isolate) {