diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug738525.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug738525.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+// Test IC for getters backed by a JSNative.
+function test1() {
+    for (var i = 0; i < 60; i++) {
+        assertEq(it.customNative, undefined);
+    }
+
+    var res = 0;
+    for (var i = 0; i < 60; i++) {
+        it.customNative = i;
+        res += it.customNative;
+    }
+
+    assertEq(res, 1770);
+}
+function test2() {
+    function getValue() {
+        return it.customNative;
+    }
+
+    for (var i = 0; i < 60; i++) {
+        it.customNative = i;
+        assertEq(getValue(), i);
+    }
+
+    for (var i = 0; i < 60; i++) {
+        it.customNative = null;
+        assertEq(getValue(), null);
+
+        delete it["customNativ" + "e"];
+        assertEq(getValue(), undefined);
+        assertEq(it.customNative, undefined);
+    }
+}
+if ("it" in this) {
+    test1();
+    test2();
+}