ASTMangler: fix mangling of generic ObjC types
ASTMangler: fix mangling of generic ObjC types

The mangled context must match the number of type argument lists. This was not the case if the bound generic nominal had a special mangling context.

rdar://problem/53418742

hooman/swift,jmgc/swift,airspeedswift/swift,lorentey/swift,roambotics/swift,nathawes/swift,aschwaighofer/swift,harlanhaskins/swift,shahmishal/swift,benlangmuir/swift,CodaFi/swift,sschiau/swift,apple/swift,CodaFi/swift,jckarter/swift,devincoughlin/swift,parkera/swift,ahoppen/swift,gregomni/swift,gribozavr/swift,apple/swift,hooman/swift,tkremenek/swift,apple/swift,jckarter/swift,gribozavr/swift,karwa/swift,CodaFi/swift,devincoughlin/swift,jckarter/swift,shahmishal/swift,parkera/swift,rudkx/swift,stephentyrone/swift,hooman/swift,parkera/swift,benlangmuir/swift,glessard/swift,tkremenek/swift,JGiola/swift,rudkx/swift,harlanhaskins/swift,airspeedswift/swift,lorentey/swift,jckarter/swift,jckarter/swift,apple/swift,apple/swift,benlangmuir/swift,rudkx/swift,roambotics/swift,aschwaighofer/swift,jmgc/swift,shahmishal/swift,atrick/swift,gribozavr/swift,shahmishal/swift,jckarter/swift,lorentey/swift,aschwaighofer/swift,atrick/swift,gribozavr/swift,stephentyrone/swift,atrick/swift,tkremenek/swift,rudkx/swift,JGiola/swift,harlanhaskins/swift,gregomni/swift,CodaFi/swift,parkera/swift,harlanhaskins/swift,atrick/swift,CodaFi/swift,hooman/swift,sschiau/swift,jmgc/swift,xwu/swift,xwu/swift,gregomni/swift,sschiau/swift,gregomni/swift,sschiau/swift,glessard/swift,lorentey/swift,CodaFi/swift,ahoppen/swift,shahmishal/swift,karwa/swift,shahmishal/swift,jckarter/swift,karwa/swift,apple/swift,ahoppen/swift,devincoughlin/swift,nathawes/swift,karwa/swift,allevato/swift,aschwaighofer/swift,benlangmuir/swift,ahoppen/swift,gribozavr/swift,jmgc/swift,ahoppen/swift,roambotics/swift,hooman/swift,lorentey/swift,aschwaighofer/swift,xwu/swift,gregomni/swift,glessard/swift,xwu/swift,airspeedswift/swift,nathawes/swift,allevato/swift,rudkx/swift,atrick/swift,tkremenek/swift,roambotics/swift,stephentyrone/swift,allevato/swift,jmgc/swift,gribozavr/swift,ahoppen/swift,benlangmuir/swift,hooman/swift,parkera/swift,tkremenek/swift,devincoughlin/swift,xwu/swift,hooman/swift,harlanhaskins/swift,parkera/swift,shahmishal/swift,parkera/swift,allevato/swift,JGiola/swift,glessard/swift,JGiola/swift,stephentyrone/swift,karwa/swift,parkera/swift,glessard/swift,jmgc/swift,lorentey/swift,airspeedswift/swift,sschiau/swift,shahmishal/swift,stephentyrone/swift,lorentey/swift,rudkx/swift,gregomni/swift,gribozavr/swift,tkremenek/swift,sschiau/swift,sschiau/swift,stephentyrone/swift,allevato/swift,glessard/swift,karwa/swift,karwa/swift,harlanhaskins/swift,airspeedswift/swift,tkremenek/swift,aschwaighofer/swift,JGiola/swift,lorentey/swift,nathawes/swift,sschiau/swift,devincoughlin/swift,CodaFi/swift,nathawes/swift,gribozavr/swift,aschwaighofer/swift,benlangmuir/swift,xwu/swift,devincoughlin/swift,xwu/swift,devincoughlin/swift,roambotics/swift,roambotics/swift,jmgc/swift,nathawes/swift,atrick/swift,harlanhaskins/swift,stephentyrone/swift,allevato/swift,devincoughlin/swift,airspeedswift/swift,nathawes/swift,JGiola/swift,karwa/swift,allevato/swift,airspeedswift/swift