[Omit needless words] Treat "Mask" as a skippable type suffix.
[Omit needless words] Treat "Mask" as a skippable type suffix.

Fixes rdar://problem/23751733.

gregomni/swift,shajrawi/swift,austinzheng/swift,tinysun212/swift-windows,JaSpa/swift,kstaring/swift,lorentey/swift,xwu/swift,brentdax/swift,uasys/swift,calebd/swift,johnno1962d/swift,hughbe/swift,xedin/swift,allevato/swift,russbishop/swift,Jnosh/swift,manavgabhawala/swift,shahmishal/swift,benlangmuir/swift,kstaring/swift,ahoppen/swift,hughbe/swift,apple/swift,codestergit/swift,tinysun212/swift-windows,milseman/swift,brentdax/swift,shajrawi/swift,return/swift,frootloops/swift,atrick/swift,alblue/swift,ben-ng/swift,aschwaighofer/swift,danielmartin/swift,nathawes/swift,jtbandes/swift,gottesmm/swift,Jnosh/swift,JGiola/swift,uasys/swift,therealbnut/swift,allevato/swift,russbishop/swift,CodaFi/swift,kperryua/swift,nathawes/swift,uasys/swift,return/swift,return/swift,milseman/swift,danielmartin/swift,gmilos/swift,IngmarStein/swift,OscarSwanros/swift,KrishMunot/swift,jmgc/swift,CodaFi/swift,frootloops/swift,xedin/swift,alblue/swift,jopamer/swift,amraboelela/swift,tardieu/swift,ben-ng/swift,glessard/swift,modocache/swift,allevato/swift,Jnosh/swift,bitjammer/swift,OscarSwanros/swift,swiftix/swift,jopamer/swift,hooman/swift,shahmishal/swift,tardieu/swift,russbishop/swift,stephentyrone/swift,parkera/swift,gribozavr/swift,natecook1000/swift,tardieu/swift,rudkx/swift,felix91gr/swift,hooman/swift,aschwaighofer/swift,kstaring/swift,ben-ng/swift,djwbrown/swift,devincoughlin/swift,tinysun212/swift-windows,gottesmm/swift,IngmarStein/swift,zisko/swift,shahmishal/swift,kperryua/swift,shahmishal/swift,sschiau/swift,johnno1962d/swift,calebd/swift,JaSpa/swift,lorentey/swift,djwbrown/swift,jmgc/swift,IngmarStein/swift,xedin/swift,tjw/swift,gmilos/swift,apple/swift,therealbnut/swift,parkera/swift,swiftix/swift,huonw/swift,rudkx/swift,gmilos/swift,arvedviehweger/swift,aschwaighofer/swift,russbishop/swift,practicalswift/swift,nathawes/swift,johnno1962d/swift,sschiau/swift,modocache/swift,modocache/swift,xedin/swift,zisko/swift,xwu/swift,OscarSwanros/swift,swiftix/swift,natecook1000/swift,manavgabhawala/swift,roambotics/swift,rudkx/swift,natecook1000/swift,parkera/swift,karwa/swift,tjw/swift,austinzheng/swift,jopamer/swift,jtbandes/swift,ken0nek/swift,huonw/swift,zisko/swift,benlangmuir/swift,CodaFi/swift,harlanhaskins/swift,ken0nek/swift,hughbe/swift,SwiftAndroid/swift,uasys/swift,felix91gr/swift,JGiola/swift,devincoughlin/swift,parkera/swift,apple/swift,johnno1962d/swift,IngmarStein/swift,austinzheng/swift,austinzheng/swift,lorentey/swift,arvedviehweger/swift,alblue/swift,gottesmm/swift,frootloops/swift,ahoppen/swift,roambotics/swift,russbishop/swift,jtbandes/swift,gribozavr/swift,manavgabhawala/swift,shahmishal/swift,bitjammer/swift,uasys/swift,xedin/swift,airspeedswift/swift,brentdax/swift,therealbnut/swift,JGiola/swift,felix91gr/swift,brentdax/swift,jmgc/swift,karwa/swift,uasys/swift,kperryua/swift,amraboelela/swift,JGiola/swift,johnno1962d/swift,gottesmm/swift,felix91gr/swift,nathawes/swift,alblue/swift,jckarter/swift,swiftix/swift,practicalswift/swift,codestergit/swift,felix91gr/swift,uasys/swift,devincoughlin/swift,stephentyrone/swift,kstaring/swift,djwbrown/swift,xwu/swift,jmgc/swift,xedin/swift,modocache/swift,sschiau/swift,hughbe/swift,amraboelela/swift,jckarter/swift,Jnosh/swift,frootloops/swift,airspeedswift/swift,lorentey/swift,shajrawi/swift,xwu/swift,djwbrown/swift,natecook1000/swift,hooman/swift,huonw/swift,sschiau/swift,IngmarStein/swift,sschiau/swift,dduan/swift,airspeedswift/swift,therealbnut/swift,Jnosh/swift,ben-ng/swift,roambotics/swift,frootloops/swift,ken0nek/swift,frootloops/swift,apple/swift,roambotics/swift,aschwaighofer/swift,zisko/swift,hooman/swift,milseman/swift,zisko/swift,swiftix/swift,arvedviehweger/swift,jtbandes/swift,JaSpa/swift,OscarSwanros/swift,shajrawi/swift,practicalswift/swift,tkremenek/swift,tardieu/swift,allevato/swift,tinysun212/swift-windows,kperryua/swift,lorentey/swift,stephentyrone/swift,practicalswift/swift,felix91gr/swift,stephentyrone/swift,allevato/swift,huonw/swift,allevato/swift,jopamer/swift,kperryua/swift,jckarter/swift,dreamsxin/swift,kperryua/swift,swiftix/swift,glessard/swift,jtbandes/swift,atrick/swift,tjw/swift,devincoughlin/swift,jckarter/swift,gmilos/swift,rudkx/swift,rudkx/swift,OscarSwanros/swift,natecook1000/swift,hughbe/swift,gribozavr/swift,djwbrown/swift,arvedviehweger/swift,shajrawi/swift,parkera/swift,OscarSwanros/swift,gottesmm/swift,amraboelela/swift,zisko/swift,aschwaighofer/swift,austinzheng/swift,tjw/swift,danielmartin/swift,brentdax/swift,practicalswift/swift,codestergit/swift,parkera/swift,airspeedswift/swift,jopamer/swift,aschwaighofer/swift,jtbandes/swift,sschiau/swift,tinysun212/swift-windows,dduan/swift,russbishop/swift,arvedviehweger/swift,therealbnut/swift,benlangmuir/swift,return/swift,bitjammer/swift,SwiftAndroid/swift,manavgabhawala/swift,roambotics/swift,practicalswift/swift,lorentey/swift,hooman/swift,airspeedswift/swift,apple/swift,apple/swift,gmilos/swift,benlangmuir/swift,karwa/swift,shajrawi/swift,calebd/swift,kstaring/swift,jopamer/swift,huonw/swift,danielmartin/swift,deyton/swift,Jnosh/swift,airspeedswift/swift,bitjammer/swift,codestergit/swift,JaSpa/swift,calebd/swift,arvedviehweger/swift,hughbe/swift,IngmarStein/swift,ben-ng/swift,deyton/swift,stephentyrone/swift,glessard/swift,calebd/swift,harlanhaskins/swift,jtbandes/swift,shahmishal/swift,SwiftAndroid/swift,amraboelela/swift,milseman/swift,milseman/swift,jckarter/swift,KrishMunot/swift,deyton/swift,codestergit/swift,deyton/swift,arvedviehweger/swift,devincoughlin/swift,CodaFi/swift,devincoughlin/swift,tkremenek/swift,return/swift,gregomni/swift,modocache/swift,CodaFi/swift,dduan/swift,tkremenek/swift,glessard/swift,JGiola/swift,amraboelela/swift,kstaring/swift,sschiau/swift,parkera/swift,gribozavr/swift,tjw/swift,gmilos/swift,gregomni/swift,jopamer/swift,johnno1962d/swift,practicalswift/swift,benlangmuir/swift,parkera/swift,modocache/swift,KrishMunot/swift,danielmartin/swift,glessard/swift,aschwaighofer/swift,KrishMunot/swift,austinzheng/swift,johnno1962d/swift,bitjammer/swift,glessard/swift,KrishMunot/swift,felix91gr/swift,ben-ng/swift,russbishop/swift,gribozavr/swift,danielmartin/swift,nathawes/swift,natecook1000/swift,deyton/swift,xedin/swift,modocache/swift,tkremenek/swift,OscarSwanros/swift,tkremenek/swift,manavgabhawala/swift,IngmarStein/swift,hughbe/swift,therealbnut/swift,zisko/swift,codestergit/swift,dduan/swift,bitjammer/swift,jckarter/swift,shajrawi/swift,calebd/swift,ahoppen/swift,roambotics/swift,gribozavr/swift,jckarter/swift,gribozavr/swift,karwa/swift,atrick/swift,SwiftAndroid/swift,deyton/swift,kperryua/swift,tkremenek/swift,KrishMunot/swift,xedin/swift,ken0nek/swift,SwiftAndroid/swift,stephentyrone/swift,jmgc/swift,natecook1000/swift,austinzheng/swift,CodaFi/swift,gribozavr/swift,KrishMunot/swift,ahoppen/swift,nathawes/swift,karwa/swift,SwiftAndroid/swift,djwbrown/swift,SwiftAndroid/swift,hooman/swift,milseman/swift,deyton/swift,jmgc/swift,airspeedswift/swift,dduan/swift,return/swift,JaSpa/swift,dduan/swift,tjw/swift,danielmartin/swift,alblue/swift,practicalswift/swift,devincoughlin/swift,ken0nek/swift,hooman/swift,ahoppen/swift,gregomni/swift,jmgc/swift,harlanhaskins/swift,bitjammer/swift,frootloops/swift,amraboelela/swift,brentdax/swift,tinysun212/swift-windows,harlanhaskins/swift,xwu/swift,return/swift,benlangmuir/swift,karwa/swift,JGiola/swift,nathawes/swift,tardieu/swift,atrick/swift,lorentey/swift,milseman/swift,harlanhaskins/swift,tinysun212/swift-windows,manavgabhawala/swift,sschiau/swift,atrick/swift,atrick/swift,harlanhaskins/swift,devincoughlin/swift,alblue/swift,karwa/swift,kstaring/swift,codestergit/swift,Jnosh/swift,dduan/swift,ken0nek/swift,allevato/swift,harlanhaskins/swift,gmilos/swift,xwu/swift,lorentey/swift,calebd/swift,huonw/swift,shahmishal/swift,JaSpa/swift,stephentyrone/swift,gregomni/swift,brentdax/swift,tkremenek/swift,gottesmm/swift,therealbnut/swift,tardieu/swift,swiftix/swift,tjw/swift,ahoppen/swift,gregomni/swift,dreamsxin/swift,manavgabhawala/swift,shahmishal/swift,djwbrown/swift,huonw/swift,alblue/swift,JaSpa/swift,shajrawi/swift,ken0nek/swift,ben-ng/swift,tardieu/swift,gottesmm/swift,xwu/swift,karwa/swift,CodaFi/swift,rudkx/swift