Fix JSON-compilation-database to support "ProcessPCH++"
Fix JSON-compilation-database to support "ProcessPCH++"

When project contains Objective-C++ code, the Preprocess can become ProcessPCH++

leopardpan/xctool,jspahrsummers/xctool,soundcloud/xctool,FiftyThree/xctool,1yvT0s/xctool,kamoljan/xctool,blighli/xctool,duk42111/xctool,n054/xctool,blighli/xctool,ACChe/xctool,bhamiltoncx/xctool,bgertzfield/xctool,Monits/xctool,ekingo/xctool,Richardlihui/xctool,theiren46/xctool,AutoScout24/xctool,n054/xctool,n054/xctool,leopardpan/xctool,kernandreas/xctool,trello/xctool,lpios/xctool,Richardlihui/xctool,ekingo/xctool,Monits/xctool,dvor/xctool,SuPair/xctool,yaoxiaoyong/xctool,trello/xctool,bgertzfield/xctool,PSPDFKit-labs/xctool,blighli/xctool,lpios/xctool,trello/xctool,theiren46/xctool,modulexcite/xctool,LegNeato/xctool,modulexcite/xctool,ACChe/xctool,PSPDFKit-labs/xctool,adamjernst/xctool,lpios/xctool,LegNeato/xctool,facebook/xctool,LegNeato/xctool,agreco/xctool,kernandreas/xctool,SuPair/xctool,PSPDFKit-labs/xctool,duk42111/xctool,adamjernst/xctool,leopardpan/xctool,yaoxiaoyong/xctool,PSPDFKit-labs/xctool,AutoScout24/xctool,1yvT0s/xctool,PSPDFKit-labs/xctool,trello/xctool,n054/xctool,adamjernst/xctool,agreco/xctool,facebook/xctool,bhamiltoncx/xctool,soundcloud/xctool,lpios/xctool,githubdelegate/xctool,AutoScout24/xctool,ACChe/xctool,duk42111/xctool,ACChe/xctool,AutoScout24/xctool,dvor/xctool,ACChe/xctool,1yvT0s/xctool,LegNeato/xctool,githubdelegate/xctool,bgertzfield/xctool,ACChe/xctool,Monits/xctool,duk42111/xctool,facebook/xctool,kamoljan/xctool,githubdelegate/xctool,soundcloud/xctool,jspahrsummers/xctool,jspahrsummers/xctool,lpios/xctool,SuPair/xctool,githubdelegate/xctool,agreco/xctool,SuPair/xctool,facebook/xctool,kamoljan/xctool,theiren46/xctool,1yvT0s/xctool,blighli/xctool,kernandreas/xctool,yaoxiaoyong/xctool,ekingo/xctool,Richardlihui/xctool,dvor/xctool,FiftyThree/xctool,adamjernst/xctool,bhamiltoncx/xctool,modulexcite/xctool,soundcloud/xctool,facebook/xctool,kamoljan/xctool,soundcloud/xctool,soundcloud/xctool,Richardlihui/xctool,bhamiltoncx/xctool,kernandreas/xctool,ekingo/xctool,modulexcite/xctool,agreco/xctool,bgertzfield/xctool,n054/xctool,leopardpan/xctool,dvor/xctool,facebook/xctool,n054/xctool,bgertzfield/xctool,FiftyThree/xctool,bhamiltoncx/xctool,jspahrsummers/xctool,bhamiltoncx/xctool,yaoxiaoyong/xctool,theiren46/xctool,FiftyThree/xctool,Monits/xctool,lpios/xctool,bgertzfield/xctool