amp-bind: More console debugging tools (#16830)
amp-bind: More console debugging tools (#16830)

* Add amp-bind debugging: elements, eval.

* Aaron's comments.

* Revert early-out for eval.

adup-tech/amphtml,cory-work/amphtml,BenDz/amphtml,danielrozenberg/amphtml,BenDz/amphtml,media-net/amphtml,jpettitt/amphtml,nexxtv/amphtml,koshka/amphtml,alanorozco/amphtml,nexxtv/amphtml,zhouyx/amphtml,techhtml/amphtml,smartadserver/amphtml,danielrozenberg/amphtml,zhouyx/amphtml,yieldbot/amphtml,rsimha-amp/amphtml,taboola/amphtml,widespace-os/amphtml,taboola/amphtml,laterpay/amphtml,tlong2/amphtml,zhouyx/amphtml,BenDz/amphtml,jridgewell/amphtml,danielrozenberg/amphtml,zhangsu/amphtml,jmadler/amphtml,zhouyx/amphtml,koshka/amphtml,zhouyx/amphtml,dotandads/amphtml,cvializ/amphtml,jpettitt/amphtml,jridgewell/amphtml,dotandads/amphtml,laterpay/amphtml,ampproject/amphtml,sharethrough/amphtml,smartadserver/amphtml,Gregable/amphtml,sebastianbenz/amphtml,kamtschatka/amphtml,voyagegroup/amphtml,taboola/amphtml,smartadserver/amphtml,dotandads/amphtml,yandex-pcode/amphtml,sebastianbenz/amphtml,zhangsu/amphtml,jpettitt/amphtml,yandex-pcode/amphtml,jridgewell/amphtml,Gregable/amphtml,sharethrough/amphtml,prateekbh/amphtml,honeybadgerdontcare/amphtml,cory-work/amphtml,taboola/amphtml,chaveznvg/amphtml,techhtml/amphtml,techhtml/amphtml,lannka/amphtml,media-net/amphtml,Gregable/amphtml,yieldbot/amphtml,laterpay/amphtml,tlong2/amphtml,src-code/amphtml,ampproject/amphtml,zhangsu/amphtml,zhangsu/amphtml,lannka/amphtml,nexxtv/amphtml,koshka/amphtml,tlong2/amphtml,nexxtv/amphtml,sebastianbenz/amphtml,alanorozco/amphtml,yieldbot/amphtml,widespace-os/amphtml,laterpay/amphtml,src-code/amphtml,rsimha-amp/amphtml,kamtschatka/amphtml,widespace-os/amphtml,kamtschatka/amphtml,alanorozco/amphtml,pedjoni8/amphtml,nexxtv/amphtml,techhtml/amphtml,voyagegroup/amphtml,sharethrough/amphtml,chaveznvg/amphtml,jmadler/amphtml,lannka/amphtml,yandex-pcode/amphtml,jridgewell/amphtml,dotandads/amphtml,mhc-gh/amphtml,taboola/amphtml,src-code/amphtml,prateekbh/amphtml,Gregable/amphtml,ampproject/amphtml,cory-work/amphtml,voyagegroup/amphtml,Gregable/amphtml,adup-tech/amphtml,sebastianbenz/amphtml,cvializ/amphtml,rsimha-amp/amphtml,kamtschatka/amphtml,sebastianbenz/amphtml,koshka/amphtml,zhouyx/amphtml,smartadserver/amphtml,yieldbot/amphtml,ampproject/amphtml,laterpay/amphtml,lannka/amphtml,honeybadgerdontcare/amphtml,alanorozco/amphtml,lannka/amphtml,mhc-gh/amphtml,danielrozenberg/amphtml,src-code/amphtml,yieldbot/amphtml,alanorozco/amphtml,BenDz/amphtml,danielrozenberg/amphtml,pedjoni8/amphtml,erwinmombay/amphtml,jridgewell/amphtml,pedjoni8/amphtml,Gregable/amphtml,src-code/amphtml,cvializ/amphtml,chaveznvg/amphtml,media-net/amphtml,sharethrough/amphtml,BenDz/amphtml,media-net/amphtml,dotandads/amphtml,cory-work/amphtml,sharethrough/amphtml,pedjoni8/amphtml,cvializ/amphtml,cory-work/amphtml,erwinmombay/amphtml,ampproject/amphtml,voyagegroup/amphtml,dotandads/amphtml,prateekbh/amphtml,jmadler/amphtml,media-net/amphtml,erwinmombay/amphtml,yandex-pcode/amphtml,techhtml/amphtml,laterpay/amphtml,jridgewell/amphtml,mhc-gh/amphtml,danielrozenberg/amphtml,jmadler/amphtml,widespace-os/amphtml,zhouyx/amphtml,chaveznvg/amphtml,techhtml/amphtml,yandex-pcode/amphtml,Gregable/amphtml,widespace-os/amphtml,nexxtv/amphtml,honeybadgerdontcare/amphtml,alanorozco/amphtml,honeybadgerdontcare/amphtml,erwinmombay/amphtml,tlong2/amphtml,pedjoni8/amphtml,danielrozenberg/amphtml,adup-tech/amphtml,prateekbh/amphtml,Gregable/amphtml,mhc-gh/amphtml,mhc-gh/amphtml,zhangsu/amphtml,jmadler/amphtml,jpettitt/amphtml,danielrozenberg/amphtml,voyagegroup/amphtml,lannka/amphtml,chaveznvg/amphtml,cvializ/amphtml,tlong2/amphtml,mhc-gh/amphtml,sebastianbenz/amphtml,rsimha-amp/amphtml,jridgewell/amphtml,adup-tech/amphtml,koshka/amphtml,smartadserver/amphtml,jmadler/amphtml,cvializ/amphtml,widespace-os/amphtml,tlong2/amphtml,kamtschatka/amphtml,media-net/amphtml,zhangsu/amphtml,honeybadgerdontcare/amphtml,smartadserver/amphtml,lannka/amphtml,yandex-pcode/amphtml,adup-tech/amphtml,ampproject/amphtml,cory-work/amphtml,alanorozco/amphtml,koshka/amphtml,adup-tech/amphtml,honeybadgerdontcare/amphtml,jpettitt/amphtml,media-net/amphtml,erwinmombay/amphtml,chaveznvg/amphtml,jpettitt/amphtml,prateekbh/amphtml,cory-work/amphtml,src-code/amphtml,yieldbot/amphtml,taboola/amphtml,erwinmombay/amphtml,yandex-pcode/amphtml,voyagegroup/amphtml,pedjoni8/amphtml,BenDz/amphtml,nexxtv/amphtml,prateekbh/amphtml,ampproject/amphtml,jpettitt/amphtml,jpettitt/amphtml,rsimha-amp/amphtml,kamtschatka/amphtml,mhc-gh/amphtml,sharethrough/amphtml,rsimha-amp/amphtml,media-net/amphtml,alanorozco/amphtml,honeybadgerdontcare/amphtml,mhc-gh/amphtml,taboola/amphtml,rsimha-amp/amphtml,ampproject/amphtml,prateekbh/amphtml,voyagegroup/amphtml