add more exponentation operator tests
add more exponentation operator tests

babel/babel,guybedford/babel,vadzim/babel,babel/babel,guybedford/babel,claudiopro/babel,existentialism/babel,samwgoldman/babel,hzoo/babel,hulkish/babel,maurobringolf/babel,cbishopvelti/babylon,babel/babylon,kaicataldo/babel,kellyselden/babel,hzoo/babel,jridgewell/babel,Skillupco/babel,claudiopro/babel,chicoxyzzy/babel,kellyselden/babel,babel/babel,Skillupco/babel,jridgewell/babel,samwgoldman/babel,shuhei/babel,hzoo/babel,shuhei/babel,hulkish/babel,danez/babylon,existentialism/babel,guybedford/babel,chicoxyzzy/babel,Skillupco/babel,recipesjs/ingredients,kaicataldo/babel,babel/babel,wcjohnson/babylon-lightscript,claudiopro/babel,samwgoldman/babel,hulkish/babel,kellyselden/babel,kaicataldo/babel,PolymerLabs/babel,kellyselden/babel,hzoo/babel,PolymerLabs/babel,PolymerLabs/babel,Skillupco/babel,existentialism/babel,shuhei/babel,jridgewell/babel,maurobringolf/babel,maurobringolf/babel,chicoxyzzy/babel,chicoxyzzy/babel,vadzim/babel,hulkish/babel,jridgewell/babel,kaicataldo/babel,lightscript/babylon-lightscript