based on ECMA-262 v11, B.2.1.2
Fixed tests from the exclude list:
* annexB/built-ins/unescape/four-ignore-bad-u.js
* annexB/built-ins/unescape/four.js
* annexB/built-ins/unescape/two.js
JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu