py/dynruntime.h: Make mp_obj_str_get_str raise if arg not a str/bytes.
py/dynruntime.h: Make mp_obj_str_get_str raise if arg not a str/bytes.

selste/micropython,pramasoul/micropython,henriknelson/micropython,selste/micropython,MrSurly/micropython,selste/micropython,kerneltask/micropython,MrSurly/micropython,pramasoul/micropython,kerneltask/micropython,henriknelson/micropython,MrSurly/micropython,pramasoul/micropython,selste/micropython,adafruit/circuitpython,bvernoux/micropython,kerneltask/micropython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,bvernoux/micropython,kerneltask/micropython,adafruit/circuitpython,pramasoul/micropython,bvernoux/micropython,henriknelson/micropython,adafruit/circuitpython,pramasoul/micropython,bvernoux/micropython,henriknelson/micropython,henriknelson/micropython,selste/micropython,bvernoux/micropython,kerneltask/micropython,MrSurly/micropython,MrSurly/micropython