Add m-esr52 at 52.6.0

1 files changed, 21 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/for-of/arguments-1.js b/js/src/jit-test/tests/for-of/arguments-1.js
new file mode 100644
index 000000000..fddb047e1
--- /dev/null
+++ b/js/src/jit-test/tests/for-of/arguments-1.js
@@ -0,0 +1,21 @@
+// for-of can iterate arguments objects.
+
+load(libdir + "iteration.js");
+
+// Arguments objects do not have a .@@iterator() method by default.
+// Install one on Object.prototype.
+Object.prototype[Symbol.iterator] = Array.prototype[Symbol.iterator];
+
+var s;
+function test() {
+    for (var v of arguments)
+        s += v;
+}
+
+s = '';
+test();
+assertEq(s, '');
+
+s = '';
+test('x', 'y');
+assertEq(s, 'xy');