1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug705895-1.js b/js/src/jit-test/tests/basic/bug705895-1.js
new file mode 100644
index 0000000000..c2beca9f63
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug705895-1.js
@@ -0,0 +1,16 @@
+load(libdir + "immutable-prototype.js");
+
+c = Number.prototype;
+function f(o) {
+    if (globalPrototypeChainIsMutable() || o !== Object.prototype)
+        o.__proto__ = null
+    for (x in o) {}
+}
+for (i = 0; i < 9; i++) {
+    f(c)
+    if (globalPrototypeChainIsMutable())
+        Object.prototype.__proto__ = c;
+    for (x in Object.prototype)
+        continue;
+    f(Math.__proto__);
+}