unknownNameSuggestErr: don't panic if we find Ids with UnhelpfulSrcSpans
unknownNameSuggestErr: don't panic if we find Ids with UnhelpfulSrcSpans

This happens with the Ids generated by the GHCi debugger for heap
values (_t1, _t2 etc.).

sdiehl/ghc,olsner/ghc,green-haskell/ghc,nathyong/microghc-ghc,GaloisInc/halvm-ghc,sdiehl/ghc,anton-dessiatov/ghc,siddhanathan/ghc,nkaretnikov/ghc,hferreiro/replay,ml9951/ghc,ml9951/ghc,bitemyapp/ghc,ryantm/ghc,mfine/ghc,hferreiro/replay,ilyasergey/GHC-XAppFix,oldmanmike/ghc,hferreiro/replay,wxwxwwxxx/ghc,lukexi/ghc,AlexanderPankiv/ghc,AlexanderPankiv/ghc,sgillespie/ghc,siddhanathan/ghc,wxwxwwxxx/ghc,nathyong/microghc-ghc,vikraman/ghc,nushio3/ghc,oldmanmike/ghc,olsner/ghc,jstolarek/ghc,shlevy/ghc,GaloisInc/halvm-ghc,christiaanb/ghc,green-haskell/ghc,ghc-android/ghc,holzensp/ghc,holzensp/ghc,sdiehl/ghc,green-haskell/ghc,vTurbine/ghc,anton-dessiatov/ghc,snoyberg/ghc,nkaretnikov/ghc,gcampax/ghc,anton-dessiatov/ghc,mfine/ghc,da-x/ghc,acowley/ghc,fmthoma/ghc,gcampax/ghc,ezyang/ghc,fmthoma/ghc,sgillespie/ghc,vikraman/ghc,ghc-android/ghc,christiaanb/ghc,nushio3/ghc,shlevy/ghc,elieux/ghc,jstolarek/ghc,lukexi/ghc-7.8-arm64,hferreiro/replay,lukexi/ghc,fmthoma/ghc,mettekou/ghc,da-x/ghc,ezyang/ghc,christiaanb/ghc,wxwxwwxxx/ghc,wxwxwwxxx/ghc,AlexanderPankiv/ghc,mettekou/ghc,vTurbine/ghc,olsner/ghc,ilyasergey/GHC-XAppFix,tibbe/ghc,spacekitteh/smcghc,mcschroeder/ghc,ml9951/ghc,spacekitteh/smcghc,tjakway/ghcjvm,ghc-android/ghc,mettekou/ghc,gcampax/ghc,ghc-android/ghc,lukexi/ghc-7.8-arm64,nushio3/ghc,snoyberg/ghc,christiaanb/ghc,tjakway/ghcjvm,da-x/ghc,TomMD/ghc,TomMD/ghc,spacekitteh/smcghc,GaloisInc/halvm-ghc,snoyberg/ghc,elieux/ghc,TomMD/ghc,gridaphobe/ghc,shlevy/ghc,hferreiro/replay,elieux/ghc,oldmanmike/ghc,ryantm/ghc,mcschroeder/ghc,christiaanb/ghc,tibbe/ghc,GaloisInc/halvm-ghc,hferreiro/replay,bitemyapp/ghc,oldmanmike/ghc,snoyberg/ghc,ekmett/ghc,gcampax/ghc,urbanslug/ghc,mettekou/ghc,tibbe/ghc,nathyong/microghc-ghc,ezyang/ghc,green-haskell/ghc,siddhanathan/ghc,sgillespie/ghc,nomeata/ghc,olsner/ghc,shlevy/ghc,nkaretnikov/ghc,snoyberg/ghc,wxwxwwxxx/ghc,mcmaniac/ghc,fmthoma/ghc,siddhanathan/ghc,tjakway/ghcjvm,forked-upstream-packages-for-ghcjs/ghc,anton-dessiatov/ghc,lukexi/ghc-7.8-arm64,ezyang/ghc,vikraman/ghc,tjakway/ghcjvm,holzensp/ghc,ekmett/ghc,shlevy/ghc,mcmaniac/ghc,frantisekfarka/ghc-dsi,mcmaniac/ghc,gcampax/ghc,nathyong/microghc-ghc,gridaphobe/ghc,sdiehl/ghc,sdiehl/ghc,oldmanmike/ghc,acowley/ghc,nushio3/ghc,spacekitteh/smcghc,hferreiro/replay,anton-dessiatov/ghc,ekmett/ghc,frantisekfarka/ghc-dsi,forked-upstream-packages-for-ghcjs/ghc,sdiehl/ghc,mfine/ghc,holzensp/ghc,elieux/ghc,spacekitteh/smcghc,ezyang/ghc,mcschroeder/ghc,tibbe/ghc,elieux/ghc,ryantm/ghc,mettekou/ghc,anton-dessiatov/ghc,lukexi/ghc,nomeata/ghc,da-x/ghc,frantisekfarka/ghc-dsi,mcmaniac/ghc,vTurbine/ghc,vTurbine/ghc,frantisekfarka/ghc-dsi,vikraman/ghc,vikraman/ghc,nomeata/ghc,ekmett/ghc,elieux/ghc,mfine/ghc,bitemyapp/ghc,TomMD/ghc,mettekou/ghc,acowley/ghc,AlexanderPankiv/ghc,olsner/ghc,forked-upstream-packages-for-ghcjs/ghc,bitemyapp/ghc,jstolarek/ghc,da-x/ghc,siddhanathan/ghc,ml9951/ghc,tjakway/ghcjvm,olsner/ghc,vTurbine/ghc,mcschroeder/ghc,shlevy/ghc,acowley/ghc,oldmanmike/ghc,jstolarek/ghc,forked-upstream-packages-for-ghcjs/ghc,acowley/ghc,ml9951/ghc,ml9951/ghc,urbanslug/ghc,holzensp/ghc,gridaphobe/ghc,urbanslug/ghc,vikraman/ghc,AlexanderPankiv/ghc,wxwxwwxxx/ghc,tjakway/ghcjvm,gridaphobe/ghc,forked-upstream-packages-for-ghcjs/ghc,olsner/ghc,TomMD/ghc,jstolarek/ghc,ghc-android/ghc,snoyberg/ghc,nushio3/ghc,vTurbine/ghc,tibbe/ghc,siddhanathan/ghc,ezyang/ghc,sgillespie/ghc,nkaretnikov/ghc,sgillespie/ghc,gridaphobe/ghc,mfine/ghc,ml9951/ghc,urbanslug/ghc,nkaretnikov/ghc,nathyong/microghc-ghc,christiaanb/ghc,anton-dessiatov/ghc,ekmett/ghc,nkaretnikov/ghc,urbanslug/ghc,nushio3/ghc,nomeata/ghc,fmthoma/ghc,mettekou/ghc,nathyong/microghc-ghc,frantisekfarka/ghc-dsi,lukexi/ghc-7.8-arm64,ilyasergey/GHC-XAppFix,GaloisInc/halvm-ghc,ilyasergey/GHC-XAppFix,forked-upstream-packages-for-ghcjs/ghc,nushio3/ghc,vTurbine/ghc,christiaanb/ghc,mcschroeder/ghc,mcschroeder/ghc,ghc-android/ghc,sgillespie/ghc,lukexi/ghc,mcschroeder/ghc,ml9951/ghc,acowley/ghc,forked-upstream-packages-for-ghcjs/ghc,oldmanmike/ghc,ezyang/ghc,ryantm/ghc,sdiehl/ghc,urbanslug/ghc,mcmaniac/ghc,wxwxwwxxx/ghc,AlexanderPankiv/ghc,mfine/ghc,lukexi/ghc-7.8-arm64,gridaphobe/ghc,GaloisInc/halvm-ghc,nomeata/ghc,da-x/ghc,lukexi/ghc,snoyberg/ghc,gcampax/ghc,sgillespie/ghc,vikraman/ghc,elieux/ghc,shlevy/ghc,GaloisInc/halvm-ghc,green-haskell/ghc,nkaretnikov/ghc,AlexanderPankiv/ghc,urbanslug/ghc,ghc-android/ghc,nathyong/microghc-ghc,fmthoma/ghc,siddhanathan/ghc,da-x/ghc,fmthoma/ghc,tjakway/ghcjvm,bitemyapp/ghc,TomMD/ghc,acowley/ghc,gcampax/ghc,ryantm/ghc,TomMD/ghc,gridaphobe/ghc,mfine/ghc