Update `util.booleanify()` return type
Update `util.booleanify()` return type

Ref https://github.com/babel/babel/commit/62f37c1e6212f14a2c23d7db34a985d2a321ee2b

ortutay/babel,STRML/babel,kpdecker/babel,jackmew/babel,samwgoldman/babel,chicoxyzzy/babel,michaelficarra/babel,ezbreaks/babel,forivall/babel,vadzim/babel,1yvT0s/babel,ezbreaks/babel,tricknotes/babel,steveluscher/babel,ccschneidr/babel,chengky/babel,Jeremy017/babel,SaltTeam/babel,jchip/babel,vipulnsward/babel,e-jigsaw/babel,jmptrader/babel,ellbee/babel,antn/babel,steveluscher/babel,moander/babel,thorikawa/babel,Dignifiedquire/babel,thorikawa/babel,jackmew/babel,benjamn/babel,CrabDude/babel,zorosteven/babel,megawac/babel,krasimir/babel,macressler/babel,pixeldrew/babel,guybedford/babel,ryankanno/babel,kassens/babel,kellyselden/babel,dekelcohen/babel,forivall-old-repos/tacoscript-babel-shared-history,aalluri-navaratan/babel,abdulsam/babel,pingjiang/babel,kaicataldo/babel,koistya/babel,claudiopro/babel,kaicataldo/babel,manukall/babel,cartermarino/babel,gxr1020/babel,ysmood/babel,manukall/babel,garyjN7/babel,beni55/babel,1yvT0s/babel,iamolivinius/babel,TheAlphaNerd/babel,krasimir/babel,Industrial/babel,zorosteven/babel,cesarandreu/6to5,sairion/babel,grasuxxxl/babel,abdulsam/babel,grasuxxxl/babel,mayflower/babel,inikulin/babel,existentialism/babel,guybedford/babel,mrmayfield/babel,victorenator/babel,Mark-Simulacrum/babel,tricknotes/babel,lxe/babel,codenamejason/babel,ianmstew/babel,zenlambda/babel,lastjune/babel,zertosh/babel,koistya/babel,rn0/babel,tikotzky/babel,jridgewell/babel,johnamiahford/babel,maurobringolf/babel,jackmew/babel,zorosteven/babel,kpdecker/babel,existentialism/babel,e-jigsaw/babel,iamolivinius/babel,DmitrySoshnikov/babel,lastjune/babel,tricknotes/babel,douglasduteil/babel,nmn/babel,sejoker/babel,mrmayfield/babel,Victorystick/babel,mayflower/babel,ErikBaath/babel,andrewwilkins/babel,mcanthony/babel,grasuxxxl/babel,mrtrizer/babel,bcoe/babel,claudiopro/babel,ywo/babel,james4388/babel,drieks/babel,zertosh/babel,ortutay/babel,greyhwndz/babel,claudiopro/babel,cartermarino/babel,sairion/babel,drieks/babel,abdulsam/babel,shuhei/babel,hzoo/babel,kaicataldo/babel,KunGha/babel,arthurvr/babel,kellyselden/babel,james4388/babel,ajcrites/babybel,victorenator/babel,ellbee/babel,1yvT0s/babel,beni55/babel,shuhei/babel,maurobringolf/babel,lastjune/babel,greyhwndz/babel,SaltTeam/babel,megawac/babel,maurobringolf/babel,ezbreaks/babel,cesarandreu/6to5,kedromelon/babel,iamchenxin/babel,Skillupco/babel,ianmstew/babel,ErikBaath/babel,existentialism/babel,samwgoldman/babel,jnuine/babel,babel/babel,Skillupco/babel,johnamiahford/babel,aalluri-navaratan/babel,jhen0409/babel,prathamesh-sonpatki/babel,chengky/babel,ming-codes/babel,jhen0409/babel,benjamn/babel,forivall/babel,andrewwilkins/babel,e-jigsaw/babel,victorenator/babel,ywo/babel,samccone/babel,prathamesh-sonpatki/babel,casser/babel,Jeremy017/babel,spicyj/babel,vipulnsward/babel,aalluri-navaratan/babel,plemarquand/babel,iamstarkov/babel,douglasduteil/babel,kevhuang/babel,babel/babel,manukall/babel,douglasduteil/babel,CrocoDillon/babel,rektide/babel-repl,kevhuang/babel,andrejkn/babel,jeffmo/babel,megawac/babel,rmacklin/babel,chengky/babel,mcanthony/babel,STRML/babel,nmn/babel,AgentME/babel,ameyms/babel,kedromelon/babel,inikulin/babel,Dignifiedquire/babel,Dignifiedquire/babel,koistya/babel,SaltTeam/babel,macressler/babel,ywo/babel,hulkish/babel,macressler/babel,vhf/babel,chicoxyzzy/babel,jridgewell/babel,kevhuang/babel,spicyj/babel,zenlambda/babel,jnuine/babel,PolymerLabs/babel,Mark-Simulacrum/babel,plemarquand/babel,vhf/babel,sethcall/babel,pixeldrew/babel,kedromelon/babel,jchip/babel,jmptrader/babel,guybedford/babel,cgvarela/babel,sejoker/babel,casser/babel,zenparsing/babel,sethcall/babel,antn/babel,hulkish/babel,vjeux/babel,ysmood/babel,codenamejason/babel,Mark-Simulacrum/babel,codenamejason/babel,hzoo/babel,andrejkn/babel,hulkish/babel,spicyj/babel,james4388/babel,dustyjewett/babel-plugin-transform-es2015-modules-commonjs-ember,nmn/babel,ameyms/babel,vadzim/babel,johnamiahford/babel,pingjiang/babel,CrabDude/babel,KualiCo/babel,jnuine/babel,kassens/babel,garyjN7/babel,andrejkn/babel,babel/babel,jridgewell/babel,babel/babel,fabiomcosta/babel,iamolivinius/babel,pingjiang/babel,kellyselden/babel,paulcbetts/babel,Skillupco/babel,hulkish/babel,kellyselden/babel,vipulnsward/babel,ortutay/babel,mcanthony/babel,hzoo/babel,mgcrea/babel,tikotzky/babel,beni55/babel,sairion/babel,ramoslin02/babel,VukDukic/babel,fabiomcosta/babel,CrocoDillon/babel,zenlambda/babel,michaelficarra/babel,Skillupco/babel,prathamesh-sonpatki/babel,pixeldrew/babel,moander/babel,jmptrader/babel,iamchenxin/babel,hubli/babel,mrtrizer/babel,mrapogee/babel,PolymerLabs/babel,lxe/babel,nishant8BITS/babel,sethcall/babel,framewr/babel,VukDukic/babel,Victorystick/babel,paulcbetts/babel,nvivo/babel,PolymerLabs/babel,hubli/babel,framewr/babel,paulcbetts/babel,AgentME/babel,mayflower/babel,thejameskyle/babel,hubli/babel,dekelcohen/babel,nishant8BITS/babel,rn0/babel,thejameskyle/babel,ramoslin02/babel,sejoker/babel,kaicataldo/babel,cartermarino/babel,ajcrites/babybel,mgcrea/babel,shuhei/babel,chicoxyzzy/babel,ajcrites/babybel,cgvarela/babel,cesarandreu/6to5,nvivo/babel,forivall/babel,jridgewell/babel,KualiCo/babel,samccone/babel,ccschneidr/babel,inikulin/babel,arthurvr/babel,iamstarkov/babel,KualiCo/babel,TheAlphaNerd/babel,andrewwilkins/babel,TheAlphaNerd/babel,Industrial/babel,VukDukic/babel,bcoe/babel,rmacklin/babel,DmitrySoshnikov/babel,gxr1020/babel,steveluscher/babel,Jeremy017/babel,greyhwndz/babel,gxr1020/babel,iamchenxin/babel,rn0/babel,framewr/babel,Victorystick/babel,cgvarela/babel,chicoxyzzy/babel,thorikawa/babel,CrabDude/babel,zjmiller/babel,forivall-old-repos/tacoscript-babel-shared-history,ErikBaath/babel,ming-codes/babel,mrapogee/babel,hzoo/babel,ianmstew/babel,moander/babel,ysmood/babel,ramoslin02/babel,mrapogee/babel,vjeux/babel,jeffmo/babel,ryankanno/babel,zenparsing/babel,ryankanno/babel,drieks/babel,samwgoldman/babel,plemarquand/babel,zjmiller/babel,jeffmo/babel,mgcrea/babel,michaelficarra/babel,vjeux/babel,KunGha/babel,ming-codes/babel,rektide/babel-repl