diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/arguments/destructuring-exprbody.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/arguments/destructuring-exprbody.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+// See bug 763313
+function f([a]) a
+var i = 0;
+var o = {get 0() { i++; return 42; }};
+assertEq(f(o), 42);
+assertEq(i, 1);