In the function [ecma_op_from_property_descriptor](https://github.com/Samsung/jerryscript/blob/master/jerry-core/ecma/operations/ecma-conversion.cpp#L431) the forth section is unreachable. FromPropertyDescriptor [8.10.4](http://www.ecma-international.org/ecma-262/5.1/#sec-8.10.4) The function is needed by the Object.getOwnPropertyDescriptor builtin function [15.2.3.4](http://www.ecma-international.org/ecma-262/5.1/#sec-15.2.3.3).