Fix a linking issue introduced by recent SILModule changes.
Fix a linking issue introduced by recent SILModule changes.

Only convert external public functions into declarations, because they are available elsewhere.

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