extmod/moduos_dupterm: Reuse dupterm_arr_obj for write operations.
extmod/moduos_dupterm: Reuse dupterm_arr_obj for write operations.

Instead of allocating new array object header again and again, causing
memory fragmentation.

HenrikSolver/micropython,ganshun666/micropython,oopy/micropython,puuu/micropython,MrSurly/micropython,toolmacher/micropython,henriknelson/micropython,dmazzella/micropython,matthewelse/micropython,swegener/micropython,HenrikSolver/micropython,trezor/micropython,alex-robbins/micropython,pramasoul/micropython,micropython/micropython-esp32,pozetroninc/micropython,MrSurly/micropython,hosaka/micropython,tobbad/micropython,deshipu/micropython,oopy/micropython,alex-march/micropython,infinnovation/micropython,jmarcelino/pycom-micropython,adafruit/micropython,hiway/micropython,hiway/micropython,MrSurly/micropython,alex-robbins/micropython,ganshun666/micropython,dmazzella/micropython,alex-march/micropython,deshipu/micropython,SHA2017-badge/micropython-esp32,adafruit/micropython,ryannathans/micropython,turbinenreiter/micropython,tralamazza/micropython,dxxb/micropython,bvernoux/micropython,HenrikSolver/micropython,pozetroninc/micropython,ganshun666/micropython,turbinenreiter/micropython,bvernoux/micropython,lowRISC/micropython,tralamazza/micropython,TDAbboud/micropython,matthewelse/micropython,SHA2017-badge/micropython-esp32,Peetz0r/micropython-esp32,pramasoul/micropython,dmazzella/micropython,pozetroninc/micropython,pramasoul/micropython,torwag/micropython,pozetroninc/micropython,selste/micropython,ganshun666/micropython,kerneltask/micropython,HenrikSolver/micropython,Peetz0r/micropython-esp32,PappaPeppar/micropython,swegener/micropython,Timmenem/micropython,chrisdearman/micropython,pfalcon/micropython,selste/micropython,MrSurly/micropython-esp32,hosaka/micropython,lowRISC/micropython,swegener/micropython,tobbad/micropython,blazewicz/micropython,bvernoux/micropython,deshipu/micropython,adafruit/micropython,pramasoul/micropython,trezor/micropython,toolmacher/micropython,redbear/micropython,AriZuu/micropython,PappaPeppar/micropython,pfalcon/micropython,torwag/micropython,henriknelson/micropython,ryannathans/micropython,mhoffma/micropython,adafruit/micropython,matthewelse/micropython,cwyark/micropython,Timmenem/micropython,turbinenreiter/micropython,kerneltask/micropython,ryannathans/micropython,adafruit/circuitpython,infinnovation/micropython,pfalcon/micropython,deshipu/micropython,MrSurly/micropython,oopy/micropython,Peetz0r/micropython-esp32,bvernoux/micropython,dxxb/micropython,jmarcelino/pycom-micropython,micropython/micropython-esp32,pozetroninc/micropython,tuc-osg/micropython,jmarcelino/pycom-micropython,oopy/micropython,kerneltask/micropython,tralamazza/micropython,tobbad/micropython,mhoffma/micropython,adafruit/circuitpython,puuu/micropython,lowRISC/micropython,oopy/micropython,SHA2017-badge/micropython-esp32,hosaka/micropython,Timmenem/micropython,ryannathans/micropython,lowRISC/micropython,micropython/micropython-esp32,toolmacher/micropython,bvernoux/micropython,ganshun666/micropython,adafruit/circuitpython,blazewicz/micropython,selste/micropython,hosaka/micropython,pramasoul/micropython,turbinenreiter/micropython,tuc-osg/micropython,tobbad/micropython,MrSurly/micropython,cwyark/micropython,chrisdearman/micropython,alex-march/micropython,blazewicz/micropython,cwyark/micropython,TDAbboud/micropython,mhoffma/micropython,toolmacher/micropython,torwag/micropython,adafruit/micropython,dxxb/micropython,infinnovation/micropython,TDAbboud/micropython,puuu/micropython,MrSurly/micropython-esp32,selste/micropython,redbear/micropython,AriZuu/micropython,AriZuu/micropython,matthewelse/micropython,swegener/micropython,MrSurly/micropython-esp32,infinnovation/micropython,lowRISC/micropython,tuc-osg/micropython,infinnovation/micropython,henriknelson/micropython,alex-march/micropython,cwyark/micropython,chrisdearman/micropython,PappaPeppar/micropython,trezor/micropython,torwag/micropython,mhoffma/micropython,alex-robbins/micropython,dmazzella/micropython,MrSurly/micropython-esp32,SHA2017-badge/micropython-esp32,micropython/micropython-esp32,kerneltask/micropython,tralamazza/micropython,hiway/micropython,TDAbboud/micropython,Timmenem/micropython,toolmacher/micropython,jmarcelino/pycom-micropython,AriZuu/micropython,jmarcelino/pycom-micropython,ryannathans/micropython,matthewelse/micropython,torwag/micropython,henriknelson/micropython,Peetz0r/micropython-esp32,dxxb/micropython,blazewicz/micropython,blazewicz/micropython,selste/micropython,pfalcon/micropython,cwyark/micropython,redbear/micropython,hiway/micropython,dxxb/micropython,henriknelson/micropython,alex-robbins/micropython,mhoffma/micropython,HenrikSolver/micropython,trezor/micropython,adafruit/circuitpython,puuu/micropython,chrisdearman/micropython,tobbad/micropython,alex-march/micropython,PappaPeppar/micropython,redbear/micropython,hiway/micropython,trezor/micropython,redbear/micropython,adafruit/circuitpython,pfalcon/micropython,turbinenreiter/micropython,tuc-osg/micropython,hosaka/micropython,deshipu/micropython,SHA2017-badge/micropython-esp32,MrSurly/micropython-esp32,swegener/micropython,adafruit/circuitpython,TDAbboud/micropython,kerneltask/micropython,Peetz0r/micropython-esp32,AriZuu/micropython,puuu/micropython,Timmenem/micropython,alex-robbins/micropython,matthewelse/micropython,micropython/micropython-esp32,chrisdearman/micropython,PappaPeppar/micropython,tuc-osg/micropython