diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug593580.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug593580.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+// Binary: cache/js-dbg-64-60af58b42567-linux
+// Flags:
+//
+realEval = eval
+f = eval("(function(){for(let x in[\
+         __defineGetter__(\"\",function(){})\
+         ,__defineGetter__(\"\
+         functional\
+         \",Math.pow)\
+         ]){\
+         (__defineSetter__(\"\",function(){}))\
+         ()\
+         }})")
+try {
+    f()
+} catch (r) {
+    delete this.eval
+    delete this.Math
+    eval = realEval
+    e = this.toSource
+}
+f = eval("(function(){(__defineSetter__(\"\
+         functional\
+         \",(function(){return{t:function(){}}})))()})")
+try {
+    f()
+} catch (r) {
+    eval()
+}