Implement a proper llvm::sys::path::reverse_iterator.
Implement a proper llvm::sys::path::reverse_iterator.

Since llvm::sys::path::const_iterator::operator* returns a reference to
a member of the iterator and std::reverse_iterator<T>::operator* call
T::operator* on a temporary object, llvm::sys::path:const_iterator can
not be used with std::reverse_iterator and we need to implement the reverse
iterator explicitly.

This fixes the execution of ROOT::TMetaUtils::GetFileName.

beniz/root,sbinet/cxx-root,smarinac/root,omazapa/root,jrtomps/root,pspe/root,esakellari/root,Duraznos/root,arch1tect0r/root,bbockelm/root,simonpf/root,smarinac/root,krafczyk/root,agarciamontoro/root,simonpf/root,gganis/root,georgtroska/root,thomaskeck/root,satyarth934/root,karies/root,satyarth934/root,olifre/root,Y--/root,jrtomps/root,gganis/root,esakellari/my_root_for_test,esakellari/my_root_for_test,CristinaCristescu/root,sbinet/cxx-root,pspe/root,satyarth934/root,karies/root,smarinac/root,mattkretz/root,zzxuanyuan/root-compressor-dummy,perovic/root,pspe/root,pspe/root,agarciamontoro/root,satyarth934/root,gbitzes/root,mhuwiler/rootauto,esakellari/my_root_for_test,evgeny-boger/root,vukasinmilosevic/root,zzxuanyuan/root,mkret2/root,satyarth934/root,jrtomps/root,davidlt/root,jrtomps/root,olifre/root,sirinath/root,krafczyk/root,davidlt/root,zzxuanyuan/root,esakellari/root,gbitzes/root,sawenzel/root,agarciamontoro/root,davidlt/root,gbitzes/root,sirinath/root,gganis/root,davidlt/root,satyarth934/root,vukasinmilosevic/root,mattkretz/root,esakellari/root,bbockelm/root,krafczyk/root,CristinaCristescu/root,smarinac/root,nilqed/root,zzxuanyuan/root,omazapa/root,arch1tect0r/root,jrtomps/root,perovic/root,pspe/root,lgiommi/root,root-mirror/root,root-mirror/root,beniz/root,bbockelm/root,gganis/root,abhinavmoudgil95/root,mkret2/root,omazapa/root,mhuwiler/rootauto,beniz/root,CristinaCristescu/root,smarinac/root,CristinaCristescu/root,evgeny-boger/root,buuck/root,esakellari/my_root_for_test,gganis/root,CristinaCristescu/root,dfunke/root,perovic/root,omazapa/root-old,sawenzel/root,abhinavmoudgil95/root,zzxuanyuan/root-compressor-dummy,arch1tect0r/root,simonpf/root,veprbl/root,beniz/root,zzxuanyuan/root-compressor-dummy,vukasinmilosevic/root,evgeny-boger/root,dfunke/root,thomaskeck/root,mattkretz/root,pspe/root,davidlt/root,buuck/root,mhuwiler/rootauto,bbockelm/root,agarciamontoro/root,sbinet/cxx-root,mattkretz/root,arch1tect0r/root,BerserkerTroll/root,veprbl/root,arch1tect0r/root,nilqed/root,mattkretz/root,thomaskeck/root,perovic/root,evgeny-boger/root,satyarth934/root,veprbl/root,omazapa/root-old,georgtroska/root,BerserkerTroll/root,sawenzel/root,bbockelm/root,georgtroska/root,evgeny-boger/root,mkret2/root,evgeny-boger/root,mkret2/root,pspe/root,Duraznos/root,nilqed/root,veprbl/root,zzxuanyuan/root,veprbl/root,nilqed/root,georgtroska/root,simonpf/root,zzxuanyuan/root,0x0all/ROOT,abhinavmoudgil95/root,smarinac/root,thomaskeck/root,abhinavmoudgil95/root,davidlt/root,0x0all/ROOT,nilqed/root,krafczyk/root,buuck/root,sawenzel/root,perovic/root,CristinaCristescu/root,mhuwiler/rootauto,mattkretz/root,perovic/root,root-mirror/root,Duraznos/root,pspe/root,zzxuanyuan/root-compressor-dummy,buuck/root,zzxuanyuan/root,bbockelm/root,buuck/root,dfunke/root,Y--/root,jrtomps/root,lgiommi/root,omazapa/root-old,georgtroska/root,lgiommi/root,BerserkerTroll/root,georgtroska/root,zzxuanyuan/root-compressor-dummy,abhinavmoudgil95/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root,zzxuanyuan/root,sirinath/root,mattkretz/root,esakellari/my_root_for_test,gbitzes/root,omazapa/root-old,mkret2/root,abhinavmoudgil95/root,veprbl/root,dfunke/root,davidlt/root,karies/root,zzxuanyuan/root-compressor-dummy,lgiommi/root,thomaskeck/root,jrtomps/root,perovic/root,sbinet/cxx-root,sbinet/cxx-root,karies/root,georgtroska/root,gbitzes/root,davidlt/root,esakellari/my_root_for_test,omazapa/root-old,esakellari/root,nilqed/root,mhuwiler/rootauto,dfunke/root,beniz/root,gbitzes/root,gbitzes/root,krafczyk/root,lgiommi/root,esakellari/my_root_for_test,Duraznos/root,mhuwiler/rootauto,gbitzes/root,davidlt/root,BerserkerTroll/root,karies/root,vukasinmilosevic/root,dfunke/root,dfunke/root,abhinavmoudgil95/root,sbinet/cxx-root,veprbl/root,esakellari/root,mattkretz/root,georgtroska/root,sirinath/root,bbockelm/root,buuck/root,sawenzel/root,sbinet/cxx-root,vukasinmilosevic/root,perovic/root,buuck/root,sirinath/root,krafczyk/root,omazapa/root,sirinath/root,simonpf/root,Duraznos/root,agarciamontoro/root,buuck/root,vukasinmilosevic/root,veprbl/root,olifre/root,CristinaCristescu/root,simonpf/root,omazapa/root-old,agarciamontoro/root,satyarth934/root,smarinac/root,buuck/root,beniz/root,mkret2/root,esakellari/root,pspe/root,buuck/root,beniz/root,mkret2/root,mhuwiler/rootauto,root-mirror/root,karies/root,sbinet/cxx-root,agarciamontoro/root,gganis/root,sirinath/root,bbockelm/root,bbockelm/root,0x0all/ROOT,Duraznos/root,Duraznos/root,vukasinmilosevic/root,CristinaCristescu/root,beniz/root,omazapa/root,mhuwiler/rootauto,omazapa/root,beniz/root,nilqed/root,BerserkerTroll/root,CristinaCristescu/root,lgiommi/root,krafczyk/root,sbinet/cxx-root,olifre/root,jrtomps/root,0x0all/ROOT,mattkretz/root,gbitzes/root,simonpf/root,mhuwiler/rootauto,sawenzel/root,omazapa/root,gbitzes/root,root-mirror/root,omazapa/root-old,pspe/root,Y--/root,Y--/root,krafczyk/root,Duraznos/root,thomaskeck/root,olifre/root,olifre/root,satyarth934/root,omazapa/root,vukasinmilosevic/root,0x0all/ROOT,smarinac/root,abhinavmoudgil95/root,dfunke/root,esakellari/root,perovic/root,thomaskeck/root,0x0all/ROOT,vukasinmilosevic/root,arch1tect0r/root,smarinac/root,pspe/root,mkret2/root,vukasinmilosevic/root,omazapa/root-old,Y--/root,BerserkerTroll/root,sbinet/cxx-root,root-mirror/root,karies/root,olifre/root,esakellari/root,simonpf/root,mhuwiler/rootauto,olifre/root,esakellari/my_root_for_test,0x0all/ROOT,BerserkerTroll/root,gganis/root,mkret2/root,arch1tect0r/root,karies/root,root-mirror/root,root-mirror/root,mattkretz/root,zzxuanyuan/root,zzxuanyuan/root-compressor-dummy,root-mirror/root,nilqed/root,jrtomps/root,veprbl/root,agarciamontoro/root,zzxuanyuan/root-compressor-dummy,Duraznos/root,root-mirror/root,beniz/root,root-mirror/root,0x0all/ROOT,Y--/root,veprbl/root,zzxuanyuan/root,evgeny-boger/root,agarciamontoro/root,abhinavmoudgil95/root,Y--/root,esakellari/root,jrtomps/root,dfunke/root,abhinavmoudgil95/root,vukasinmilosevic/root,BerserkerTroll/root,sawenzel/root,agarciamontoro/root,lgiommi/root,beniz/root,lgiommi/root,perovic/root,davidlt/root,sawenzel/root,sawenzel/root,simonpf/root,arch1tect0r/root,arch1tect0r/root,jrtomps/root,Duraznos/root,simonpf/root,BerserkerTroll/root,sawenzel/root,gganis/root,evgeny-boger/root,mattkretz/root,sirinath/root,BerserkerTroll/root,omazapa/root-old,nilqed/root,evgeny-boger/root,georgtroska/root,evgeny-boger/root,buuck/root,agarciamontoro/root,evgeny-boger/root,CristinaCristescu/root,mkret2/root,simonpf/root,krafczyk/root,Y--/root,esakellari/root,zzxuanyuan/root,nilqed/root,lgiommi/root,sirinath/root,bbockelm/root,nilqed/root,gbitzes/root,BerserkerTroll/root,sawenzel/root,lgiommi/root,omazapa/root,thomaskeck/root,perovic/root,gganis/root,thomaskeck/root,krafczyk/root,esakellari/my_root_for_test,Y--/root,georgtroska/root,Duraznos/root,gganis/root,omazapa/root-old,dfunke/root,georgtroska/root,arch1tect0r/root,sbinet/cxx-root,omazapa/root,Y--/root,olifre/root,karies/root,bbockelm/root,omazapa/root,olifre/root,veprbl/root,mkret2/root,mhuwiler/rootauto,esakellari/root,zzxuanyuan/root-compressor-dummy,smarinac/root,thomaskeck/root,arch1tect0r/root,satyarth934/root,karies/root,esakellari/my_root_for_test,zzxuanyuan/root,lgiommi/root,davidlt/root,olifre/root,karies/root,krafczyk/root,gganis/root,Y--/root,sirinath/root,CristinaCristescu/root,zzxuanyuan/root-compressor-dummy,dfunke/root,abhinavmoudgil95/root,satyarth934/root,0x0all/ROOT,omazapa/root-old,sirinath/root