AST: Assert in getInterfaceType() if no interface type is set
AST: Assert in getInterfaceType() if no interface type is set

All decls except for ParamDecls must now have an interface type.

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