Fix up compnerd's change 46d684f to stop using BitstreamReader.
Fix up compnerd's change 46d684f to stop using BitstreamReader.

The more important fix here is to remove a duplicated call to advance the
cursor, which led to module import being completely broken. I also added
back the AF_DontPopBlockAtEnd flags that were dropped. I am not certain
if they are needed but without clear indication otherwise, we should keep
them.

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