extmod/modure: Add cast to workaround bug in MSVC.
extmod/modure: Add cast to workaround bug in MSVC.

blazewicz/micropython,tralamazza/micropython,tobbad/micropython,blazewicz/micropython,MrSurly/micropython,adafruit/circuitpython,pozetroninc/micropython,infinnovation/micropython,pfalcon/micropython,adafruit/micropython,dmazzella/micropython,dmazzella/micropython,adafruit/circuitpython,trezor/micropython,pozetroninc/micropython,tralamazza/micropython,trezor/micropython,trezor/micropython,pfalcon/micropython,selste/micropython,adafruit/circuitpython,henriknelson/micropython,infinnovation/micropython,pfalcon/micropython,bvernoux/micropython,adafruit/micropython,MrSurly/micropython,selste/micropython,ryannathans/micropython,adafruit/circuitpython,selste/micropython,ryannathans/micropython,dmazzella/micropython,tobbad/micropython,infinnovation/micropython,tobbad/micropython,tralamazza/micropython,selste/micropython,trezor/micropython,adafruit/micropython,adafruit/circuitpython,trezor/micropython,pramasoul/micropython,swegener/micropython,pozetroninc/micropython,adafruit/circuitpython,pozetroninc/micropython,pramasoul/micropython,infinnovation/micropython,kerneltask/micropython,ryannathans/micropython,henriknelson/micropython,pramasoul/micropython,MrSurly/micropython,pramasoul/micropython,tralamazza/micropython,bvernoux/micropython,dmazzella/micropython,swegener/micropython,pramasoul/micropython,blazewicz/micropython,henriknelson/micropython,MrSurly/micropython,bvernoux/micropython,kerneltask/micropython,adafruit/micropython,henriknelson/micropython,tobbad/micropython,kerneltask/micropython,blazewicz/micropython,bvernoux/micropython,pozetroninc/micropython,pfalcon/micropython,selste/micropython,pfalcon/micropython,MrSurly/micropython,blazewicz/micropython,infinnovation/micropython,swegener/micropython,swegener/micropython,kerneltask/micropython,bvernoux/micropython,henriknelson/micropython,tobbad/micropython,swegener/micropython,ryannathans/micropython,kerneltask/micropython,adafruit/micropython,ryannathans/micropython