// |jit-test| error:ReferenceError (function(global) { global.makeIterator = function makeIterator(overrides) { var iterator = { return: function(x) { return overrides.ret(x); } }; return function() { return iterator; }; } })(this); var iterable = {}; iterable[Symbol.iterator] = makeIterator({ ret: (function() { enableGeckoProfilingWithSlowAssertions(); }) }); 0, [...{} [throwlhs()]] = iterable;