MSVC doesn't support C99 VLA (variable-length array).
Use fixed size arrays in API examples and use JERRY_VLA macro
in unit tests to make these tests buildable on Windows too.
JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác oszi@inf.u-szeged.hu
`test-api.c` is contains testing for all API functions. This file is too big and hard to read. This patch moves the strings and string methods into a separate test file.
JerryScript-DCO-1.0-Signed-off-by: Bela Toth tbela@inf.u-szeged.hu