There is an Assertion in 'contextp->nextscannerinfop->type == SCANNERTYPEFUNCTION' in parserparsefunction_arguments in JerryScript 2.2.0.
{ "binaries": [ { "binary_name": "iotjs", "binary_version": "1.0+715-1ubuntu2" }, { "binary_name": "iotjs-dev", "binary_version": "1.0+715-1ubuntu2" } ] }