Update lib/AST/DiagnosticEngine.cpp
Update lib/AST/DiagnosticEngine.cpp

Co-authored-by: Suyash Srijan <7398bc0d2c7d6b0e984e2fd94e04a2e1e1fd4564@outlook.com>
CodaFi/swift,tkremenek/swift,ahoppen/swift,hooman/swift,CodaFi/swift,allevato/swift,nathawes/swift,stephentyrone/swift,ahoppen/swift,jmgc/swift,jmgc/swift,benlangmuir/swift,xwu/swift,glessard/swift,atrick/swift,glessard/swift,parkera/swift,airspeedswift/swift,airspeedswift/swift,airspeedswift/swift,nathawes/swift,gregomni/swift,gregomni/swift,parkera/swift,atrick/swift,CodaFi/swift,parkera/swift,JGiola/swift,xwu/swift,tkremenek/swift,jmgc/swift,stephentyrone/swift,tkremenek/swift,JGiola/swift,roambotics/swift,nathawes/swift,jckarter/swift,xwu/swift,allevato/swift,rudkx/swift,glessard/swift,stephentyrone/swift,hooman/swift,parkera/swift,glessard/swift,apple/swift,airspeedswift/swift,CodaFi/swift,xwu/swift,jckarter/swift,allevato/swift,apple/swift,airspeedswift/swift,rudkx/swift,nathawes/swift,atrick/swift,roambotics/swift,JGiola/swift,rudkx/swift,glessard/swift,jckarter/swift,jmgc/swift,rudkx/swift,stephentyrone/swift,gregomni/swift,gregomni/swift,tkremenek/swift,benlangmuir/swift,jckarter/swift,gregomni/swift,stephentyrone/swift,ahoppen/swift,ahoppen/swift,apple/swift,benlangmuir/swift,JGiola/swift,parkera/swift,JGiola/swift,atrick/swift,allevato/swift,rudkx/swift,hooman/swift,jckarter/swift,tkremenek/swift,xwu/swift,ahoppen/swift,airspeedswift/swift,stephentyrone/swift,jmgc/swift,rudkx/swift,hooman/swift,benlangmuir/swift,jmgc/swift,parkera/swift,benlangmuir/swift,CodaFi/swift,roambotics/swift,roambotics/swift,allevato/swift,atrick/swift,JGiola/swift,jmgc/swift,tkremenek/swift,allevato/swift,allevato/swift,hooman/swift,ahoppen/swift,roambotics/swift,xwu/swift,atrick/swift,gregomni/swift,jckarter/swift,roambotics/swift,glessard/swift,nathawes/swift,apple/swift,benlangmuir/swift,airspeedswift/swift,hooman/swift,xwu/swift,parkera/swift,nathawes/swift,stephentyrone/swift,CodaFi/swift,parkera/swift,CodaFi/swift,nathawes/swift,tkremenek/swift,hooman/swift,apple/swift,apple/swift,jckarter/swift