Upgrade Regenerator to 0.8.40
Upgrade Regenerator to 0.8.40

Most notably, this pegs regenerator to a version of recast (0.10.33) which pegs ast-types to a version (0.8.12) that contains https://github.com/benjamn/ast-types/pull/128, so the Babel client bundle size will be a bit smaller.
kedromelon/babel,iamchenxin/babel,koistya/babel,douglasduteil/babel,STRML/babel,inikulin/babel,kellyselden/babel,drieks/babel,shuhei/babel,garyjN7/babel,vadzim/babel,ccschneidr/babel,cartermarino/babel,PolymerLabs/babel,mgcrea/babel,hzoo/babel,cgvarela/babel,fabiomcosta/babel,samwgoldman/babel,jeffmo/babel,bcoe/babel,inikulin/babel,Victorystick/babel,iamchenxin/babel,KunGha/babel,hulkish/babel,jridgewell/babel,benjamn/babel,kellyselden/babel,maurobringolf/babel,shuhei/babel,vadzim/babel,cgvarela/babel,Skillupco/babel,framewr/babel,fabiomcosta/babel,jhen0409/babel,cartermarino/babel,existentialism/babel,lxe/babel,kedromelon/babel,jeffmo/babel,Industrial/babel,hulkish/babel,koistya/babel,codenamejason/babel,mcanthony/babel,forivall/babel,babel/babel,codenamejason/babel,vhf/babel,chicoxyzzy/babel,jchip/babel,maurobringolf/babel,guybedford/babel,zenlambda/babel,mgcrea/babel,Mark-Simulacrum/babel,DmitrySoshnikov/babel,drieks/babel,kassens/babel,mcanthony/babel,DmitrySoshnikov/babel,zenlambda/babel,kaicataldo/babel,kaicataldo/babel,abdulsam/babel,krasimir/babel,AgentME/babel,ameyms/babel,ameyms/babel,sejoker/babel,jridgewell/babel,vhf/babel,iamstarkov/babel,moander/babel,zertosh/babel,guybedford/babel,dekelcohen/babel,hulkish/babel,jridgewell/babel,krasimir/babel,framewr/babel,kedromelon/babel,forivall/babel,maurobringolf/babel,babel/babel,hzoo/babel,kaicataldo/babel,KualiCo/babel,Skillupco/babel,mrtrizer/babel,sejoker/babel,iamchenxin/babel,CrocoDillon/babel,moander/babel,jhen0409/babel,james4388/babel,jridgewell/babel,PolymerLabs/babel,Industrial/babel,benjamn/babel,jeffmo/babel,STRML/babel,james4388/babel,douglasduteil/babel,moander/babel,abdulsam/babel,babel/babel,ccschneidr/babel,claudiopro/babel,forivall/babel,garyjN7/babel,kellyselden/babel,iamstarkov/babel,rmacklin/babel,chicoxyzzy/babel,Mark-Simulacrum/babel,KualiCo/babel,mcanthony/babel,zjmiller/babel,bcoe/babel,tikotzky/babel,kpdecker/babel,abdulsam/babel,zenlambda/babel,KualiCo/babel,kellyselden/babel,cgvarela/babel,existentialism/babel,samwgoldman/babel,mrtrizer/babel,dekelcohen/babel,mgcrea/babel,ajcrites/babybel,existentialism/babel,Mark-Simulacrum/babel,guybedford/babel,Skillupco/babel,hulkish/babel,cartermarino/babel,antn/babel,Skillupco/babel,claudiopro/babel,kassens/babel,dustyjewett/babel-plugin-transform-es2015-modules-commonjs-ember,CrocoDillon/babel,douglasduteil/babel,hzoo/babel,chicoxyzzy/babel,inikulin/babel,jchip/babel,antn/babel,zertosh/babel,sejoker/babel,zjmiller/babel,KunGha/babel,kpdecker/babel,james4388/babel,framewr/babel,codenamejason/babel,koistya/babel,hzoo/babel,chicoxyzzy/babel,ajcrites/babybel,Victorystick/babel,PolymerLabs/babel,ajcrites/babybel,claudiopro/babel,zenparsing/babel,samwgoldman/babel,drieks/babel,tikotzky/babel,rmacklin/babel,AgentME/babel,Victorystick/babel,zenparsing/babel,shuhei/babel,lxe/babel,kaicataldo/babel,babel/babel