GC: growObj: revert to somewhat more efficient version
GC: growObj: revert to somewhat more efficient version

BlaXpirit/nim,russpowers/Nim,MrJohz/Nim,jfhg/Nim,sarvex/Nim-lang,haiodo/Nim,MrJohz/Nim,SSPkrolik/Nim,BlaXpirit/nim,fredericksilva/Nim,bvssvni/Nim,Dhertz/Nim,Senketsu/Nim,Salafit/Nim,jsanjuas/Nim,tmm1/Nim,judofyr/Nim,MrJohz/Nim,nafsaka/Nim,sferik/Nim,reactormonk/nim,fmamud/Nim,Dhertz/Nim,xland/Nim,douglas-larocca/Nim,judofyr/Nim,BlaXpirit/nim,Salafit/Nim,zachaysan/Nim,douglas-larocca/Nim,tulayang/Nim,singularperturbation/Nim,russpowers/Nim,nanoant/Nim,fredericksilva/Nim,JCavallo/Nim,MrJohz/Nim,MrJohz/Nim,greyanubis/Nim,russpowers/Nim,mbaulch/Nim,nimLuckyBull/Nim,fmamud/Nim,sferik/Nim,Dhertz/Nim,Senketsu/Nim,nafsaka/Nim,nafsaka/Nim,russpowers/Nim,tmm1/Nim,Salafit/Nim,fredericksilva/Nim,dom96/Nim,sarvex/Nim-lang,russpowers/Nim,MrJohz/Nim,jfhg/Nim,judofyr/Nim,xland/Nim,russpowers/Nim,JCavallo/Nim,sferik/Nim,nanoant/Nim,reactormonk/nim,Matt14916/Nim,jfhg/Nim,Senketsu/Nim,kirbyfan64/Nim,reactormonk/nim,tulayang/Nim,Salafit/Nim,fmamud/Nim,haiodo/Nim,sarvex/Nim-lang,nimLuckyBull/Nim,kirbyfan64/Nim,SSPkrolik/Nim,SSPkrolik/Nim,gokr/Nim,sferik/Nim,nafsaka/Nim,Dhertz/Nim,jsanjuas/Nim,haiodo/Nim,fredericksilva/Nim,tulayang/Nim,gokr/Nim,gokr/Nim,JCavallo/Nim,greyanubis/Nim,singularperturbation/Nim,xland/Nim,tulayang/Nim,zachaysan/Nim,BlaXpirit/nim,dom96/Nim,mbaulch/Nim,jsanjuas/Nim,reactormonk/nim,endragor/Nim,Senketsu/Nim,mbaulch/Nim,dom96/Nim,Matt14916/Nim,BlaXpirit/nim,fmamud/Nim,msmith491/Nim,nimLuckyBull/Nim,fmamud/Nim,judofyr/Nim,msmith491/Nim,douglas-larocca/Nim,greyanubis/Nim,russpowers/Nim,SSPkrolik/Nim,nimLuckyBull/Nim,msmith491/Nim,SSPkrolik/Nim,zachaysan/Nim,msmith491/Nim,Salafit/Nim,Senketsu/Nim,douglas-larocca/Nim,haiodo/Nim,judofyr/Nim,sferik/Nim,Matt14916/Nim,greyanubis/Nim,dom96/Nim,Matt14916/Nim,Salafit/Nim,fmamud/Nim,jsanjuas/Nim,dom96/Nim,BlaXpirit/nim,sarvex/Nim-lang,reactormonk/nim,zachaysan/Nim,haiodo/Nim,judofyr/Nim,douglas-larocca/Nim,jfhg/Nim,Dhertz/Nim,nimLuckyBull/Nim,bvssvni/Nim,nafsaka/Nim,tmm1/Nim,tmm1/Nim,endragor/Nim,Matt14916/Nim,JCavallo/Nim,haiodo/Nim,greyanubis/Nim,gokr/Nim,fredericksilva/Nim,sferik/Nim,fmamud/Nim,nanoant/Nim,kirbyfan64/Nim,jsanjuas/Nim,SSPkrolik/Nim,douglas-larocca/Nim,reactormonk/nim,bvssvni/Nim,sarvex/Nim-lang,nanoant/Nim,sarvex/Nim-lang,xland/Nim,nimLuckyBull/Nim,endragor/Nim,fredericksilva/Nim,sferik/Nim,Dhertz/Nim,douglas-larocca/Nim,haiodo/Nim,singularperturbation/Nim,xland/Nim,greyanubis/Nim,kirbyfan64/Nim,bvssvni/Nim,dom96/Nim,tmm1/Nim,BlaXpirit/nim,JCavallo/Nim,jfhg/Nim,singularperturbation/Nim,nanoant/Nim,fredericksilva/Nim,jsanjuas/Nim,nanoant/Nim,gokr/Nim,JCavallo/Nim,msmith491/Nim,xland/Nim,Matt14916/Nim,reactormonk/nim,gokr/Nim,endragor/Nim,Senketsu/Nim,jfhg/Nim,nanoant/Nim,zachaysan/Nim,bvssvni/Nim,sarvex/Nim-lang,endragor/Nim,zachaysan/Nim,nafsaka/Nim,JCavallo/Nim,Dhertz/Nim,kirbyfan64/Nim,mbaulch/Nim,kirbyfan64/Nim,Senketsu/Nim,endragor/Nim,msmith491/Nim,reactormonk/nim,sferik/Nim,Salafit/Nim,greyanubis/Nim,singularperturbation/Nim,fredericksilva/Nim,bvssvni/Nim,douglas-larocca/Nim,singularperturbation/Nim,dom96/Nim,judofyr/Nim,bvssvni/Nim,mbaulch/Nim,zachaysan/Nim,MrJohz/Nim,jsanjuas/Nim,mbaulch/Nim,xland/Nim,singularperturbation/Nim,jfhg/Nim,msmith491/Nim,endragor/Nim,kirbyfan64/Nim,tmm1/Nim,SSPkrolik/Nim,nimLuckyBull/Nim,gokr/Nim,nafsaka/Nim,tmm1/Nim,Matt14916/Nim,BlaXpirit/nim,gokr/Nim,tulayang/Nim,kirbyfan64/Nim,SSPkrolik/Nim,mbaulch/Nim,judofyr/Nim,tulayang/Nim