Add special flag for permanent `nameTaken` error
Add special flag for permanent `nameTaken` error

This flag indicates that the client should not provide the option
to choose a new name, because all names will fail, rather than just
the one specified.

LustyAsh/EOS-Master,Irraquated/Pokemon-Showdown,Flareninja/Pokemon-Showdown-1,JennyPRO/Jenny,AnaRitaTorres/Pokemon-Showdown,Fusxfaranto/Pokemon-Showdown,Lord-Haji/SpacialGaze,FakeSloth/Infinite,hayleysworld/serenityc9,panpawn/Gold-Server,TheFenderStory/Pokemon-Showdown,Firestatics/omega,Firestatics/Firestatics46,comedianchameleon/test,Pikachuun/Touhoumon-Showdown,CorruptedHelix/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,KewlStatics/Shit,abrulochp/Lumen-Pokemon-Showdown,DesoGit/TsunamiPS,AWailOfATail/awoat,SilverTactic/Pokemon-Showdown,forbiddennightmare/Pokemon-Showdown-1,SkyeTheFemaleSylveon/Pokemon-Showdown,Neosweiss/Pokemon-Showdown,Zipzapadam/Server,ehk12/clone,kupochu/Pokemon-Showdown,panpawn/Gold-Server,AustinXII/Pokemon-Showdown,gustavo515/test,abulechu/Dropp-Pokemon-Showdown,abrulochp/Dropp-Pokemon-Showdown,Flareninja/Lumen-Pokemon-Showdown,svivian/Pokemon-Showdown,FakeSloth/Infinite,Zarel/Pokemon-Showdown,KewlStatics/Showdown-Template,TheManwithskills/Server-2,SerperiorBae/Bae-Showdown-2,ZeroParadox/ugh,PS-Spectral/Spectral,sirDonovan/Pokemon-Showdown,Zarel/Pokemon-Showdown,DesoGit/TsunamiPS,MayukhKundu/Technogear,UniversalMan12/Universe-Server,aakashrajput/Pokemon-Showdown,Ridukuo/Test,catanatron/pokemon-rebalance,KewlStatics/Pokeindia-Codes,Evil-kun/Pokemon-Showdown,Gold-Solox/Pokemon-Showdown,SerperiorBae/Bae-Showdown,hayleysworld/Pokemon-Showdown,HoeenCoder/SpacialGaze,AvinashSwaminathan/lotus-v3,sama2/Lumen-Pokemon-Showdown,Wando94/Spite,hayleysworld/Showdown-Boilerplate,iFaZe/SilverZ,PS-Spectral/Spectral,Yggdrasil-League/Yggdrasil,Volcos/SpacialGaze,ZeroParadox/ugh,Sora-League/Sora,Hidden-Mia/Roleplay-PS,abulechu/Dropp-Pokemon-Showdown,SerperiorBae/PokemonShowdown2,ShowdownHelper/Saffron,Celecitia/Plux-Pokemon-Showdown,panpawn/Pokemon-Showdown,lAlejandro22/lolipoop,Sora-Server/Sora,kuroscafe/Showdown-Boilerplate,BlazingAura/Showdown-Boilerplate,gustavo515/final,SilverTactic/Showdown-Boilerplate,ehk12/bigbangtempclone,Ridukuo/Test,SilverTactic/Dragotica-Pokemon-Showdown,Nineage/Origin,TheManwithskills/Server,Lauc1an/Perulink-Showdown,hayleysworld/asdfasdf,TheManwithskills/Server-2,kuroscafe/Showdown-Boilerplate,TheDiabolicGift/Lumen-Pokemon-Showdown,TheManwithskills/Dusk--Showdown,gustavo515/final,AbsolitoSweep/Absol-server,Johto-Serverr/Werfin-Boilerplate,asdfghjklohhnhn/Pokemon-Showdown,TogeSR/Lumen-Pokemon-Showdown,Pikachuun/Pokemon-Showdown,MasterFloat/Pokemon-Showdown,Enigami/Pokemon-Showdown,SilverTactic/Dragotica-Pokemon-Showdown,TheManwithskills/DS,Ecuacion/Pokemon-Showdown,PrimalGallade45/Dropp-Pokemon-Showdown,brettjbush/Pokemon-Showdown,Flareninja/Pokemon-Showdown,ZeroParadox/BlastBurners,Wando94/Pokemon-Showdown,Irraquated/EOS-Master,ZestOfLife/FestiveLife,TheManwithskills/Dusk--Showdown,k3naan/Pokemon-Showdown,xfix/Pokemon-Showdown,Raina4uberz/Light-server,MayukhKundu/Technogear-Final,TbirdClanWish/Pokemon-Showdown,Ecuacion/Pokemon-Showdown,NoahVSGamingYT/Pokemon-Showdown,HoeenCoder/SpacialGaze,DB898/theregalias,Elveman/RPCShowdownServer,SerperiorBae/BaeShowdown,CorruptedHelix/Pokemon-Showdown,Sora-League/Sora,TheManwithskills/COC,Pikachuun/Pokemon-Showdown-SMCMDM,Hopenub/Pokemon-Showdown,lFernanl/Pokemon-Showdown,Disaster-Area/Pokemon-Showdown,zczd/enculer,EienSeiryuu/Pokemon-Showdown,johtooo/PS,Oiawesome/DPPtServ2,Bryan-0/Pokemon-Showdown,DarkSuicune/Kakuja-2.0,Adithya4Uberz/KTN,SilverTactic/Pokemon-Showdown,CharizardtheFireMage/Showdown-Boilerplate,psnsVGC/Wish-Server,ankailou/Pokemon-Showdown,ScottehMax/Pokemon-Showdown,Flareninja/Hispano-Pokemon-Showdown,PrimalGallade45/Lumen-Pokemon-Showdown,TheManwithskills/Creature-phil-boiler,ankailou/Pokemon-Showdown,TbirdClanWish/Pokemon-Showdown,MayukhKundu/Mudkip-Server,KewlStatics/Alliance,VoltStorm/Server-pokemon-showdown,scotchkorean27/Pokemon-Showdown,Psyientist/Showdown-Boilerplate,CreaturePhil/Showdown-Boilerplate,Elveman/RPCShowdownServer,EmmaKitty/Pokemon-Showdown,Darkshadow6/git-remote-add-scalingo-git-scalingo.com-pokemoonforums,LustyAsh/EOS-Master,TheManwithskills/Server-2,InvalidDN/Pokemon-Showdown,Atwar/server-epilogueleague.rhcloud.com,hayleysworld/harmonia,DesoGit/Tsunami_PS,Mystifi/Exiled,jumbowhales/Pokemon-Showdown,Irraquated/Pokemon-Showdown,javi501/Lumen-Pokemon-Showdown,xCrystal/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,DB898/theregalias,CreaturePhil/Pokemon-Showdown,PauLucario/LQP-Server-Showdown,SSJGVegito007/Vegito-s-Server,Oiawesome/DPPtServ2,LegendBorned/PS-Boilerplate,Breakfastqueen/advanced,yashagl/pokecommunity,lFernanl/Pokemon-Showdown,Flareninja/Lumen-Pokemon-Showdown,sama2/Lumen-Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,bai2/Dropp,ZestOfLife/PSserver,MasterFloat/LQP-Server-Showdown,Firestatics/omega,lFernanl/Lumen-Pokemon-Showdown,ZestOfLife/FestiveLife,Irraquated/EOS-Master,MayukhKundu/Technogear-Final,Kokonoe-san/Glacia-PS,Irraquated/Showdown-Boilerplate,comedianchameleon/servertest1,Tesarand/Pokemon-Showdown,comedianchameleon/test,kubetz/Pokemon-Showdown,SubZeroo99/Pokemon-Showdown,Flareninja/Sora,abrulochp/Lumen-Pokemon-Showdown,SkyeTheFemaleSylveon/Pokemon-Showdown,asdfghjklohhnhn/Pokemon-Showdown,UniversalMan12/Universe-Server,svivian/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,Raina4uberz/Light-server,Legit99/Lightning-Storm-Server,danpantry/Pokemon-Showdown,kuroscafe/Paradox,sama2/Universe-Pokemon-Showdown,xCrystal/Pokemon-Showdown,BlakJack/Kill-The-Noise,JellalTheMage/Jellals-Server,SerperiorBae/Pokemon-Showdown-1,BuzzyOG/Pokemon-Showdown,javi501/Lumen-Pokemon-Showdown,TheDiabolicGift/Showdown-Boilerplate,KewlStatics/Pokeindia-Codes,Parukia/Pokemon-Showdown,johtooo/PS,Atwar/http-server-femalehq.rhcloud.com-80.psim.us-,Flareninja/Hispano-Pokemon-Showdown,superman8900/Pokemon-Showdown,AustinXII/Pokemon-Showdown,urkerab/Pokemon-Showdown,Neosweiss/Pokemon-Showdown,EienSeiryuu/Pokemon-Showdown,JellalTheMage/Jellals-Server,Atwar/ServerClassroom,SSJGVegito007/Vegito-s-Server,ShowdownHelper/Saffron,Lord-Haji/SpacialGaze,aakashrajput/Pokemon-Showdown,KewlStatics/Showdown-Template,xfix/Pokemon-Showdown,Mystifi/Exiled,JellalTheMage/PS-,Pikachuun/Pokemon-Showdown-SMCMDM,gustavo515/batata,megaslowbro1/Pokemon-Showdown,urkerab/Pokemon-Showdown,MeliodasBH/Articuno-Land,Kevinxzllz/PS-Openshift-Server,AustinXII/Pokemon-Showdown,AbsolitoSweep/Absol-server,theodelhay/test,miahjennatills/Pokemon-Showdown,zczd/enculer,Vacate/Pokemon-Showdown,lFernanl/Mudkip-Server,TheFenderStory/Showdown-Boilerplate,psnsVGC/Wish-Server,scotchkorean27/Pokemon-Showdown,Flareninja/Sora,Tesarand/Pokemon-Showdown,Guernouille/Pokemon-Showdown,SerperiorBae/Bae-Showdown,kuroscafe/Paradox,Kokonoe-san/Glacia-PS,CrestfallPS/Pokemon-Showdown,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,hayleysworld/serenity,svivian/Pokemon-Showdown,AvinashSwaminathan/Pokelegends,aakashrajput/Pokemon-Showdown,DarkSuicune/Kakuja-2.0,SerperiorBae/Pokemon-Showdown-1,Kevinxzllz/PS-Openshift-Server,SilverTactic/Showdown-Boilerplate,SubZeroo99/Pokemon-Showdown,DesoGit/Tsunami_PS,kubetz/Pokemon-Showdown,FakeSloth/wulu,svivian/Pokemon-Showdown,Luobata/Pokemon-Showdown,Legit99/Lightning-Storm-Server,MeliodasBH/boarhat,SkyeTheFemaleSylveon/Mudkip-Server,TheManwithskills/New-boiler-test,hayleysworld/serenityserver,Checkinator/Pokemon-Showdown,Pikachuun/Joimmon-Showdown,Lord-Haji/SpacialGaze,Evil-kun/Pokemon-Showdown,PrimalGallade45/Lumen-Pokemon-Showdown,Enigami/Pokemon-Showdown,DalleTest/Pokemon-Showdown,ehk12/coregit,Mystifi/Exiled,yashagl/yash-showdown,CreaturePhil/Showdown-Boilerplate,superman8900/Pokemon-Showdown,LightningStormServer/Lightning-Storm,sama2/Viridian-Pokemon-Showdown,TheManwithskills/DS,KaitoV4X/Showdown,Zarel/Pokemon-Showdown,TheManwithskills/Server,xfix/Pokemon-Showdown,Adithya4Uberz/The-Tsunami-League,Hidden-Mia/Roleplay-PS,Pokemon-Devs/Pokemon-Showdown,jd4564/Pokemon-Showdown,TheFenderStory/Pokemon-Showdown,TheDiabolicGift/Lumen-Pokemon-Showdown,cadaeic/Pokemon-Showdown,xCrystal/Pokemon-Showdown,Darkshadow6/git-remote-add-scalingo-git-scalingo.com-pokemoonforums,kotarou3/Krister-Pokemon-Showdown,sirDonovan/Pokemon-Showdown,piiiikachuuu/Pokemon-Showdown,Ransei1/Alt,SerperiorBae/Pokemon-Showdown-1,CharizardtheFireMage/Showdown-Boilerplate,Alpha-Devs/Alpha-Server,Firestatics/Firestatics46,hayleysworld/serenity,ehk12/clone,BadSteel/Omega-Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,RustServer/Pokemon-Showdown,SerperiorBae/BaeShowdown,DalleTest/Pokemon-Showdown,BasedGod7/PH,hayleysworld/Showdown-Boilerplate,lFernanl/Zero-Pokemon-Showdown,brettjbush/Pokemon-Showdown,Irraquated/Showdown-Boilerplate,Flareninja/Pokemon-Showdown-1,BuzzyOG/Pokemon-Showdown,MayukhKundu/Pokemon-Domain,Enigami/Pokemon-Showdown,AnaRitaTorres/Pokemon-Showdown,Extradeath/psserver,sama2/Universe-Pokemon-Showdown,JennyPRO/Jenny,Ecuacion/Lumen-Pokemon-Showdown,TheManwithskills/Server---Thermal,Volcos/SpacialGaze,LightningStormServer/Lightning-Storm,zek7rom/SpacialGaze,Darkshadow6/git-remote-add-scalingo-git-scalingo.com-pokemoonforums,megaslowbro1/Pokemon-Showdown,ehk12/coregit,hayleysworld/harmonia,SkyeTheFemaleSylveon/Mudkip-Server,Checkinator/Pokemon-Showdown,catanatron/pokemon-rebalance,DarkSuicune/Pokemon-Showdown,MayukhKundu/Mudkip-Server,cadaeic/Pokemon-Showdown,Yggdrasil-League/Yggdrasil,comedianchameleon/test,yashagl/pokemon-showdown,Syurra/Pokemon-Showdown,sama2/Dropp-Pokemon-Showdown,ZestOfLife/PSserver,TheManwithskills/New-boiler-test,Extradeath/psserver,bai2/Dropp,lFernanl/Zero-Pokemon-Showdown,ehk12/bigbangtempclone,hayleysworld/asdfasdf,ShowdownHelper/Saffron,EmmaKitty/Pokemon-Showdown,Darkshadow6/PokeMoon-Creation,LegendBorned/PS-Boilerplate,Atwar/http-server-femalehq.rhcloud.com-80.psim.us-,HoeenCoder/SpacialGaze,hayleysworld/Pokemon-Showdown,DesoGit/Tsunami_PS,Kill-The-Noise/BlakJack-Boilerplate,azum4roll/Pokemon-Showdown,Irraquated/Pokemon-Showdown,MayukhKundu/Flame-Savior,Ransei1/Alt,anubhabsen/Pokemon-Showdown,azum4roll/Pokemon-Showdown,Vacate/Pokemon-Showdown,Darkshadow6/PokeMoon-Creation,RustServer/Pokemon-Showdown,AWailOfATail/awoat,PauLucario/LQP-Server-Showdown,SerperiorBae/BaeShowdown,panpawn/Pokemon-Showdown,Articuno-I/Pokemon-Showdown,Atwar/ServerClassroom,arkanox/MistShowdown,jumbowhales/Pokemon-Showdown,Flareninja/Showdown-Boilerplate,jd4564/Pokemon-Showdown,MeliodasBH/boarhat,danpantry/Pokemon-Showdown,Arcticblast/Pokemon-Showdown,Celecitia/Plux-Pokemon-Showdown,Wando94/Spite,Git-Worm/City-PS,TheManwithskills/serenity,TheManwithskills/Creature-phil-boiler,Flareninja/Pokemon-Showdown,Adithya4Uberz/The-Tsunami-League,theodelhay/test,lFernanl/Mudkip-Server,Parukia/Pokemon-Showdown,Flareninja/Showdown-Boilerplate,Breakfastqueen/advanced,Stroke123/POKEMON,AWailOfATail/Pokemon-Showdown,AvinashSwaminathan/lotus,SolarisFox/Pokemon-Showdown,abulechu/Lumen-Pokemon-Showdown,UniversalMan12/Universe-Server,Pikachuun/Joimmon-Showdown,Tesarand/Pokemon-Showdown,Lauc1an/Perulink-Showdown,AvinashSwaminathan/lotus-v2,TheManwithskills/COC,MayukhKundu/Technogear,TheManwithskills/serenity,KewlStatics/Shit,KewlStatics/Alliance,Werfin96/Ultimate,KaitoV4X/Showdown,ScottehMax/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,yashagl/pokemon-showdown,xfix/Pokemon-Showdown,TheFenderStory/Showdown-Boilerplate,Git-Worm/City-PS,Sora-Server/Sora,JellalTheMage/PS-,MasterFloat/Pokemon-Showdown,Extradeath/advanced,zek7rom/SpacialGaze,SerperiorBae/Bae-Showdown-2,Parukia/Pokemon-Showdown,SolarisFox/Pokemon-Showdown,Firestatics/Omega-Alpha,Articuno-I/Pokemon-Showdown,Flareninja/Sora,BuzzyOG/Pokemon-Showdown,Chespin14/Custom-Platform-Pokemon-Showdown,Wando94/Pokemon-Showdown,Kill-The-Noise/BlakJack-Boilerplate,BadSteel/Pokemon-Showdown,Enigami/Pokemon-Showdown,Nineage/Showdown-Boilerplate,Thiediev/Pokemon-Showdown,NoahVSGamingYT/Pokemon-Showdown,SerperiorBae/Pokemon-Showdown,Syurra/Pokemon-Showdown,abrulochp/Dropp-Pokemon-Showdown,TogeSR/Lumen-Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,DarkSuicune/Pokemon-Showdown,Psyientist/Showdown-Boilerplate,Guernouille/Pokemon-Showdown,InvalidDN/Pokemon-Showdown,hayleysworld/serenityserver,Kill-The-Noise/BlakJack-Boilerplate,Bryan-0/Pokemon-Showdown,Pablo000/aaa,SerperiorBae/Bae-Showdown,hayleysworld/serenityc9,HoeenKid/Pokemon-Showdown-Johto,HoeenCoder/SpacialGaze,abulechu/Lumen-Pokemon-Showdown,kupochu/Pokemon-Showdown,MayukhKundu/Pokemon-Domain,PS-Spectral/Spectral,Pikachuun/Pokemon-Showdown,Alpha-Devs/Alpha-Server,Alpha-Devs/OmegaRuby-Server,megaslowbro1/Showdown-Server-again,MeliodasBH/Articuno-Land,Firestatics/Omega-Alpha,Pokemon-Devs/Pokemon-Showdown,yashagl/pokecommunity,SerperiorBae/Pokemon-Showdown,TheDiabolicGift/Showdown-Boilerplate,Gold-Solox/Pokemon-Showdown,SerperiorBae/PokemonShowdown2,svivian/Pokemon-Showdown,forbiddennightmare/Pokemon-Showdown-1,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,PrimalGallade45/Dropp-Pokemon-Showdown,Zipzapadam/Server,Pablo000/aaa,yashagl/pokemon,miahjennatills/Pokemon-Showdown,xfix/Pokemon-Showdown,anubhabsen/Pokemon-Showdown,LightningStormServer/Lightning-Storm,MayukhKundu/Flame-Savior,SerperiorBae/Pokemon-Showdown,Stroke123/POKEMON,Ridukuo/Test2,Ridukuo/Test2,megaslowbro1/Showdown-Server-again,TheManwithskills/Server---Thermal,Extradeath/advanced,Sora-Server/Sora,k3naan/Pokemon-Showdown,Kenny-/Pokemon-Showdown,sama2/Viridian-Pokemon-Showdown,Disaster-Area/Pokemon-Showdown,Alpha-Devs/OmegaRuby-Server,arkanox/MistShowdown,MasterFloat/LQP-Server-Showdown,Nineage/Origin,Atwar/server-epilogueleague.rhcloud.com,gustavo515/gashoro,gustavo515/test,piiiikachuuu/Pokemon-Showdown,urkerab/Pokemon-Showdown,Darkshadow6/PokeMoon-Creation,Legendaryhades/Oblivion,comedianchameleon/servertest1,gustavo515/batata,lFernanl/Lumen-Pokemon-Showdown,SerperiorBae/Bae-Showdown-2,lAlejandro22/lolipoop,iFaZe/SliverX,AWailOfATail/Pokemon-Showdown,yashagl/pokemon,kotarou3/Krister-Pokemon-Showdown,yashagl/yash-showdown,BlazingAura/Showdown-Boilerplate,Breakfastqueen/advanced,CreaturePhil/Pokemon-Showdown,panpawn/Gold-Server,sama2/Dropp-Pokemon-Showdown,Sora-League/Sora,gustavo515/gashoro,ZeroParadox/BlastBurners,Ecuacion/Lumen-Pokemon-Showdown