Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/mjsunit/es6/rest-params-lazy-parsing.js b/test/mjsunit/es6/rest-params-lazy-parsing.js
new file mode 100644
index 0000000..c9b8166
--- /dev/null
+++ b/test/mjsunit/es6/rest-params-lazy-parsing.js
@@ -0,0 +1,32 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --min-preparse-length=0
+
+function variadic(co, ...values) {
+ var sum = 0;
+ while (values.length) {
+ sum += co * values.pop();
+ }
+ return sum;
+}
+
+var arrowVariadic = (co, ...values) => {
+ var sum = 0;
+ while (values.length) {
+ sum += co * values.pop();
+ }
+ return sum;
+}
+
+assertEquals(1, variadic.length);
+assertEquals(1, arrowVariadic.length);
+
+assertEquals(90, variadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9));
+assertEquals(74, variadic(2, 1, 2, 3, 4, 5, 6, 7, 9));
+assertEquals(110, variadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
+
+assertEquals(90, arrowVariadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9));
+assertEquals(74, arrowVariadic(2, 1, 2, 3, 4, 5, 6, 7, 9));
+assertEquals(110, arrowVariadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));