gc: Don't segfault if gc_realloc() fails.
gc: Don't segfault if gc_realloc() fails.

hiway/micropython,methoxid/micropystat,martinribelotta/micropython,ruffy91/micropython,heisewangluo/micropython,firstval/micropython,pramasoul/micropython,slzatz/micropython,skybird6672/micropython,Vogtinator/micropython,Peetz0r/micropython-esp32,selste/micropython,paul-xxx/micropython,matthewelse/micropython,ganshun666/micropython,warner83/micropython,vriera/micropython,ChuckM/micropython,trezor/micropython,selste/micropython,alex-robbins/micropython,skybird6672/micropython,ernesto-g/micropython,ceramos/micropython,ahotam/micropython,aethaniel/micropython,puuu/micropython,PappaPeppar/micropython,KISSMonX/micropython,HenrikSolver/micropython,suda/micropython,supergis/micropython,hiway/micropython,noahwilliamsson/micropython,KISSMonX/micropython,Vogtinator/micropython,jmarcelino/pycom-micropython,dxxb/micropython,ryannathans/micropython,warner83/micropython,dhylands/micropython,SungEun-Steve-Kim/test-mp,cloudformdesign/micropython,Peetz0r/micropython-esp32,tralamazza/micropython,galenhz/micropython,tdautc19841202/micropython,AriZuu/micropython,selste/micropython,omtinez/micropython,hiway/micropython,cloudformdesign/micropython,pozetroninc/micropython,aethaniel/micropython,ChuckM/micropython,mpalomer/micropython,mgyenik/micropython,SHA2017-badge/micropython-esp32,vriera/micropython,kostyll/micropython,chrisdearman/micropython,rubencabrera/micropython,ChuckM/micropython,MrSurly/micropython,oopy/micropython,SungEun-Steve-Kim/test-mp,utopiaprince/micropython,EcmaXp/micropython,torwag/micropython,aitjcize/micropython,omtinez/micropython,bvernoux/micropython,stonegithubs/micropython,Vogtinator/micropython,aitjcize/micropython,kerneltask/micropython,MrSurly/micropython-esp32,Timmenem/micropython,stonegithubs/micropython,dxxb/micropython,torwag/micropython,ericsnowcurrently/micropython,MrSurly/micropython-esp32,neilh10/micropython,cloudformdesign/micropython,swegener/micropython,ernesto-g/micropython,danicampora/micropython,pozetroninc/micropython,cwyark/micropython,suda/micropython,misterdanb/micropython,heisewangluo/micropython,omtinez/micropython,misterdanb/micropython,mhoffma/micropython,emfcamp/micropython,noahchense/micropython,lowRISC/micropython,dinau/micropython,drrk/micropython,cwyark/micropython,Timmenem/micropython,TDAbboud/micropython,pozetroninc/micropython,pramasoul/micropython,ceramos/micropython,hosaka/micropython,misterdanb/micropython,suda/micropython,feilongfl/micropython,deshipu/micropython,mhoffma/micropython,mpalomer/micropython,blazewicz/micropython,feilongfl/micropython,toolmacher/micropython,redbear/micropython,tuc-osg/micropython,pfalcon/micropython,methoxid/micropystat,praemdonck/micropython,mpalomer/micropython,alex-march/micropython,trezor/micropython,firstval/micropython,puuu/micropython,xuxiaoxin/micropython,cnoviello/micropython,firstval/micropython,slzatz/micropython,SungEun-Steve-Kim/test-mp,tdautc19841202/micropython,danicampora/micropython,puuu/micropython,emfcamp/micropython,ruffy91/micropython,methoxid/micropystat,jimkmc/micropython,vitiral/micropython,dmazzella/micropython,jimkmc/micropython,blmorris/micropython,emfcamp/micropython,tuc-osg/micropython,supergis/micropython,ganshun666/micropython,puuu/micropython,infinnovation/micropython,Timmenem/micropython,toolmacher/micropython,blmorris/micropython,orionrobots/micropython,danicampora/micropython,noahwilliamsson/micropython,cloudformdesign/micropython,xuxiaoxin/micropython,vitiral/micropython,orionrobots/micropython,jlillest/micropython,deshipu/micropython,swegener/micropython,Peetz0r/micropython-esp32,blmorris/micropython,feilongfl/micropython,cwyark/micropython,tobbad/micropython,orionrobots/micropython,infinnovation/micropython,lbattraw/micropython,ahotam/micropython,xuxiaoxin/micropython,warner83/micropython,chrisdearman/micropython,noahchense/micropython,TDAbboud/micropython,misterdanb/micropython,EcmaXp/micropython,AriZuu/micropython,ahotam/micropython,tobbad/micropython,ganshun666/micropython,xyb/micropython,SHA2017-badge/micropython-esp32,kerneltask/micropython,lbattraw/micropython,utopiaprince/micropython,kostyll/micropython,jmarcelino/pycom-micropython,ChuckM/micropython,blazewicz/micropython,micropython/micropython-esp32,hiway/micropython,jlillest/micropython,PappaPeppar/micropython,xhat/micropython,jlillest/micropython,danicampora/micropython,puuu/micropython,hosaka/micropython,stonegithubs/micropython,adafruit/micropython,selste/micropython,kerneltask/micropython,oopy/micropython,drrk/micropython,dxxb/micropython,TDAbboud/micropython,adafruit/micropython,turbinenreiter/micropython,pfalcon/micropython,blazewicz/micropython,tobbad/micropython,vriera/micropython,praemdonck/micropython,Peetz0r/micropython-esp32,tuc-osg/micropython,oopy/micropython,dinau/micropython,heisewangluo/micropython,pozetroninc/micropython,jmarcelino/pycom-micropython,tdautc19841202/micropython,tralamazza/micropython,dinau/micropython,swegener/micropython,mianos/micropython,misterdanb/micropython,neilh10/micropython,xyb/micropython,suda/micropython,oopy/micropython,henriknelson/micropython,cwyark/micropython,torwag/micropython,praemdonck/micropython,swegener/micropython,toolmacher/micropython,micropython/micropython-esp32,adafruit/circuitpython,Vogtinator/micropython,MrSurly/micropython,feilongfl/micropython,adafruit/circuitpython,adamkh/micropython,martinribelotta/micropython,alex-robbins/micropython,chrisdearman/micropython,ganshun666/micropython,martinribelotta/micropython,ruffy91/micropython,toolmacher/micropython,stonegithubs/micropython,deshipu/micropython,KISSMonX/micropython,vriera/micropython,skybird6672/micropython,neilh10/micropython,ericsnowcurrently/micropython,pfalcon/micropython,EcmaXp/micropython,AriZuu/micropython,blmorris/micropython,ruffy91/micropython,HenrikSolver/micropython,alex-march/micropython,micropython/micropython-esp32,bvernoux/micropython,jlillest/micropython,matthewelse/micropython,suda/micropython,mgyenik/micropython,jmarcelino/pycom-micropython,omtinez/micropython,EcmaXp/micropython,ericsnowcurrently/micropython,neilh10/micropython,noahchense/micropython,dhylands/micropython,bvernoux/micropython,tdautc19841202/micropython,turbinenreiter/micropython,mgyenik/micropython,adafruit/circuitpython,chrisdearman/micropython,MrSurly/micropython-esp32,tobbad/micropython,lowRISC/micropython,heisewangluo/micropython,alex-march/micropython,lowRISC/micropython,tuc-osg/micropython,adamkh/micropython,firstval/micropython,feilongfl/micropython,drrk/micropython,redbear/micropython,aethaniel/micropython,henriknelson/micropython,noahwilliamsson/micropython,pfalcon/micropython,HenrikSolver/micropython,warner83/micropython,skybird6672/micropython,dmazzella/micropython,danicampora/micropython,infinnovation/micropython,drrk/micropython,matthewelse/micropython,cnoviello/micropython,praemdonck/micropython,hiway/micropython,lbattraw/micropython,xyb/micropython,kerneltask/micropython,toolmacher/micropython,dinau/micropython,alex-march/micropython,TDAbboud/micropython,kerneltask/micropython,drrk/micropython,TDAbboud/micropython,mianos/micropython,trezor/micropython,AriZuu/micropython,galenhz/micropython,micropython/micropython-esp32,xyb/micropython,PappaPeppar/micropython,xhat/micropython,ernesto-g/micropython,kostyll/micropython,adamkh/micropython,tralamazza/micropython,dxxb/micropython,orionrobots/micropython,xhat/micropython,hosaka/micropython,rubencabrera/micropython,lowRISC/micropython,adafruit/circuitpython,SungEun-Steve-Kim/test-mp,alex-robbins/micropython,utopiaprince/micropython,EcmaXp/micropython,redbear/micropython,mianos/micropython,MrSurly/micropython,blazewicz/micropython,matthewelse/micropython,turbinenreiter/micropython,SHA2017-badge/micropython-esp32,ericsnowcurrently/micropython,supergis/micropython,adamkh/micropython,ernesto-g/micropython,lbattraw/micropython,Peetz0r/micropython-esp32,rubencabrera/micropython,henriknelson/micropython,adafruit/micropython,mgyenik/micropython,PappaPeppar/micropython,galenhz/micropython,mhoffma/micropython,alex-robbins/micropython,PappaPeppar/micropython,ryannathans/micropython,orionrobots/micropython,MrSurly/micropython,infinnovation/micropython,deshipu/micropython,alex-robbins/micropython,jimkmc/micropython,xyb/micropython,xuxiaoxin/micropython,galenhz/micropython,ruffy91/micropython,noahchense/micropython,MrSurly/micropython,turbinenreiter/micropython,torwag/micropython,ganshun666/micropython,deshipu/micropython,paul-xxx/micropython,redbear/micropython,dhylands/micropython,cnoviello/micropython,noahwilliamsson/micropython,tuc-osg/micropython,pozetroninc/micropython,pramasoul/micropython,MrSurly/micropython-esp32,mpalomer/micropython,mhoffma/micropython,mhoffma/micropython,aethaniel/micropython,xhat/micropython,cnoviello/micropython,ceramos/micropython,xuxiaoxin/micropython,Timmenem/micropython,hosaka/micropython,jmarcelino/pycom-micropython,hosaka/micropython,utopiaprince/micropython,paul-xxx/micropython,skybird6672/micropython,lowRISC/micropython,turbinenreiter/micropython,dhylands/micropython,methoxid/micropystat,mpalomer/micropython,supergis/micropython,ChuckM/micropython,SHA2017-badge/micropython-esp32,jlillest/micropython,ryannathans/micropython,martinribelotta/micropython,swegener/micropython,praemdonck/micropython,bvernoux/micropython,matthewelse/micropython,aitjcize/micropython,kostyll/micropython,matthewelse/micropython,martinribelotta/micropython,utopiaprince/micropython,heisewangluo/micropython,tdautc19841202/micropython,emfcamp/micropython,adafruit/circuitpython,pramasoul/micropython,adamkh/micropython,slzatz/micropython,slzatz/micropython,SungEun-Steve-Kim/test-mp,ryannathans/micropython,HenrikSolver/micropython,micropython/micropython-esp32,stonegithubs/micropython,blazewicz/micropython,redbear/micropython,tralamazza/micropython,ahotam/micropython,lbattraw/micropython,vriera/micropython,dmazzella/micropython,vitiral/micropython,henriknelson/micropython,supergis/micropython,kostyll/micropython,noahchense/micropython,dhylands/micropython,vitiral/micropython,mgyenik/micropython,torwag/micropython,rubencabrera/micropython,chrisdearman/micropython,xhat/micropython,omtinez/micropython,bvernoux/micropython,neilh10/micropython,cwyark/micropython,noahwilliamsson/micropython,ceramos/micropython,cnoviello/micropython,dinau/micropython,trezor/micropython,aitjcize/micropython,emfcamp/micropython,warner83/micropython,trezor/micropython,dmazzella/micropython,slzatz/micropython,Timmenem/micropython,MrSurly/micropython-esp32,adafruit/micropython,ryannathans/micropython,mianos/micropython,SHA2017-badge/micropython-esp32,oopy/micropython,methoxid/micropystat,tobbad/micropython,adafruit/micropython,selste/micropython,KISSMonX/micropython,paul-xxx/micropython,ceramos/micropython,rubencabrera/micropython,alex-march/micropython,mianos/micropython,paul-xxx/micropython,ahotam/micropython,firstval/micropython,adafruit/circuitpython,AriZuu/micropython,jimkmc/micropython,Vogtinator/micropython,aethaniel/micropython,dxxb/micropython,vitiral/micropython,ericsnowcurrently/micropython,ernesto-g/micropython,HenrikSolver/micropython,jimkmc/micropython,henriknelson/micropython,infinnovation/micropython,pfalcon/micropython,KISSMonX/micropython,galenhz/micropython,cloudformdesign/micropython,pramasoul/micropython,blmorris/micropython