Add utf-8 processing routines.
Change ecma_char_t from char/uint16_t to uint16_t.
Apply all utf-8 processing routines.
Change char to jerry_api_char in API functions' declarations.
JerryScript-DCO-1.0-Signed-off-by: Andrey Shitov a.shitov@samsung.com
The removed assertion checked that `this` argument can't be equal to `undefined` in direct call to eval.
Actually, `this` can be not equal to `undefined` in case direct call to eval is performed from `with` block.
Related issue: #212
JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com