[Linux] Add Glibc overlay support for fcntl stat macros.
[Linux] Add Glibc overlay support for fcntl stat macros.

Swift SVN r32655

hughbe/swift,devincoughlin/swift,aschwaighofer/swift,JaSpa/swift,nathawes/swift,uasys/swift,mightydeveloper/swift,khizkhiz/swift,johnno1962d/swift,sschiau/swift,Jnosh/swift,mightydeveloper/swift,sdulal/swift,manavgabhawala/swift,codestergit/swift,kperryua/swift,gmilos/swift,gottesmm/swift,tjw/swift,tkremenek/swift,austinzheng/swift,milseman/swift,djwbrown/swift,huonw/swift,sschiau/swift,dreamsxin/swift,therealbnut/swift,karwa/swift,deyton/swift,uasys/swift,xwu/swift,zisko/swift,Jnosh/swift,alblue/swift,slavapestov/swift,gribozavr/swift,brentdax/swift,swiftix/swift,swiftix/swift.old,KrishMunot/swift,zisko/swift,alblue/swift,austinzheng/swift,KrishMunot/swift,atrick/swift,milseman/swift,parkera/swift,cbrentharris/swift,bitjammer/swift,sschiau/swift,mightydeveloper/swift,johnno1962d/swift,JaSpa/swift,natecook1000/swift,allevato/swift,felix91gr/swift,Ivacker/swift,tardieu/swift,calebd/swift,gribozavr/swift,swiftix/swift,JGiola/swift,CodaFi/swift,JaSpa/swift,xedin/swift,MukeshKumarS/Swift,shahmishal/swift,Ivacker/swift,IngmarStein/swift,JGiola/swift,khizkhiz/swift,ben-ng/swift,tardieu/swift,stephentyrone/swift,xwu/swift,danielmartin/swift,apple/swift,nathawes/swift,apple/swift,roambotics/swift,airspeedswift/swift,glessard/swift,jmgc/swift,frootloops/swift,bitjammer/swift,mightydeveloper/swift,LeoShimonaka/swift,calebd/swift,benlangmuir/swift,gribozavr/swift,shajrawi/swift,CodaFi/swift,kusl/swift,mightydeveloper/swift,ahoppen/swift,codestergit/swift,swiftix/swift,aschwaighofer/swift,frootloops/swift,kusl/swift,calebd/swift,devincoughlin/swift,brentdax/swift,russbishop/swift,tkremenek/swift,swiftix/swift.old,therealbnut/swift,tardieu/swift,airspeedswift/swift,jopamer/swift,jckarter/swift,jopamer/swift,sschiau/swift,gribozavr/swift,JaSpa/swift,CodaFi/swift,parkera/swift,calebd/swift,harlanhaskins/swift,IngmarStein/swift,tkremenek/swift,emilstahl/swift,rudkx/swift,sdulal/swift,kstaring/swift,calebd/swift,adrfer/swift,sdulal/swift,sdulal/swift,adrfer/swift,ahoppen/swift,austinzheng/swift,tinysun212/swift-windows,tjw/swift,gribozavr/swift,jopamer/swift,airspeedswift/swift,swiftix/swift,mightydeveloper/swift,JGiola/swift,tardieu/swift,arvedviehweger/swift,jmgc/swift,gregomni/swift,tinysun212/swift-windows,Ivacker/swift,tkremenek/swift,milseman/swift,MukeshKumarS/Swift,manavgabhawala/swift,adrfer/swift,brentdax/swift,therealbnut/swift,sschiau/swift,natecook1000/swift,uasys/swift,shahmishal/swift,gregomni/swift,slavapestov/swift,JaSpa/swift,uasys/swift,ben-ng/swift,karwa/swift,jtbandes/swift,xedin/swift,tinysun212/swift-windows,ken0nek/swift,jtbandes/swift,benlangmuir/swift,jmgc/swift,Jnosh/swift,calebd/swift,cbrentharris/swift,SwiftAndroid/swift,xedin/swift,aschwaighofer/swift,gottesmm/swift,nathawes/swift,alblue/swift,aschwaighofer/swift,natecook1000/swift,practicalswift/swift,karwa/swift,modocache/swift,jtbandes/swift,codestergit/swift,frootloops/swift,glessard/swift,codestergit/swift,djwbrown/swift,tjw/swift,hughbe/swift,ahoppen/swift,karwa/swift,OscarSwanros/swift,ben-ng/swift,modocache/swift,swiftix/swift,kperryua/swift,stephentyrone/swift,jmgc/swift,ahoppen/swift,zisko/swift,gribozavr/swift,therealbnut/swift,karwa/swift,bitjammer/swift,tinysun212/swift-windows,shahmishal/swift,devincoughlin/swift,cbrentharris/swift,lorentey/swift,SwiftAndroid/swift,emilstahl/swift,frootloops/swift,djwbrown/swift,Ivacker/swift,emilstahl/swift,swiftix/swift.old,lorentey/swift,kusl/swift,djwbrown/swift,kstaring/swift,OscarSwanros/swift,roambotics/swift,dreamsxin/swift,Ivacker/swift,felix91gr/swift,stephentyrone/swift,danielmartin/swift,ken0nek/swift,shajrawi/swift,emilstahl/swift,harlanhaskins/swift,xedin/swift,alblue/swift,slavapestov/swift,mightydeveloper/swift,sschiau/swift,deyton/swift,rudkx/swift,kusl/swift,ahoppen/swift,gmilos/swift,jopamer/swift,zisko/swift,huonw/swift,parkera/swift,shahmishal/swift,ken0nek/swift,bitjammer/swift,stephentyrone/swift,shahmishal/swift,tjw/swift,johnno1962d/swift,Ivacker/swift,kperryua/swift,kentya6/swift,allevato/swift,kperryua/swift,natecook1000/swift,adrfer/swift,LeoShimonaka/swift,jtbandes/swift,return/swift,shajrawi/swift,nathawes/swift,sdulal/swift,kperryua/swift,manavgabhawala/swift,MukeshKumarS/Swift,khizkhiz/swift,MukeshKumarS/Swift,airspeedswift/swift,codestergit/swift,ken0nek/swift,bitjammer/swift,kentya6/swift,LeoShimonaka/swift,devincoughlin/swift,IngmarStein/swift,practicalswift/swift,gmilos/swift,parkera/swift,gmilos/swift,khizkhiz/swift,Jnosh/swift,gmilos/swift,kperryua/swift,dduan/swift,austinzheng/swift,jckarter/swift,codestergit/swift,hooman/swift,frootloops/swift,nathawes/swift,CodaFi/swift,deyton/swift,sdulal/swift,Jnosh/swift,harlanhaskins/swift,danielmartin/swift,amraboelela/swift,therealbnut/swift,danielmartin/swift,aschwaighofer/swift,gregomni/swift,modocache/swift,SwiftAndroid/swift,IngmarStein/swift,hughbe/swift,kusl/swift,roambotics/swift,frootloops/swift,benlangmuir/swift,SwiftAndroid/swift,johnno1962d/swift,dduan/swift,uasys/swift,sdulal/swift,harlanhaskins/swift,jtba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