Avoid segmentation fault in case TClingClassInfo is not present
Avoid segmentation fault in case TClingClassInfo is not present

in the HasDictionary and GetMissingDictionaries.
It was reproducible with simple statements like:
TClass::GetClass("vector<vector<TH1F> >")->HasDictionary();

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