py/qstr: Evaluate find_qstr only once then pass to Q_GET_HASH macro.
py/qstr: Evaluate find_qstr only once then pass to Q_GET_HASH macro.

Q_GET_HASH may evaluate its argument more than once.

henriknelson/micropython,henriknelson/micropython,pfalcon/micropython,MrSurly/micropython,trezor/micropython,henriknelson/micropython,adafruit/circuitpython,tobbad/micropython,pramasoul/micropython,bvernoux/micropython,bvernoux/micropython,selste/micropython,tobbad/micropython,adafruit/circuitpython,adafruit/circuitpython,tobbad/micropython,kerneltask/micropython,pozetroninc/micropython,adafruit/circuitpython,pramasoul/micropython,pfalcon/micropython,pfalcon/micropython,MrSurly/micropython,selste/micropython,kerneltask/micropython,pozetroninc/micropython,bvernoux/micropython,tobbad/micropython,pramasoul/micropython,pramasoul/micropython,pfalcon/micropython,henriknelson/micropython,pozetroninc/micropython,pfalcon/micropython,trezor/micropython,adafruit/circuitpython,trezor/micropython,kerneltask/micropython,selste/micropython,MrSurly/micropython,trezor/micropython,bvernoux/micropython,henriknelson/micropython,pozetroninc/micropython,selste/micropython,MrSurly/micropython,selste/micropython,kerneltask/micropython,trezor/micropython,MrSurly/micropython,pozetroninc/micropython,adafruit/circuitpython,tobbad/micropython,bvernoux/micropython,kerneltask/micropython,pramasoul/micropython