diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug860838-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug860838-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+var counter = 0;
+function inc() { return counter++ }
+var imp = { inc:inc };
+
+function FFI1(stdlib, foreign) {
+    "use asm";
+
+    var inc = foreign.inc;
+
+    function g() {
+      return inc()|0
+    }
+
+    return g
+}
+
+function FFI2(stdlib, foreign) {
+    "use asm";
+
+    var inc=foreign.inc;
+
+    function g() {
+      inc()
+    }
+
+    return g
+}
+
+
+var f = FFI2(this, imp);     // produces AOT-compiled version
+f()
+assertEq(counter, 1);
+
+var f = FFI1(this, imp);     // produces AOT-compiled version
+
+assertEq(f(), 1);
+assertEq(counter, 2);
+assertEq(f(), 2);
+assertEq(counter, 3);