parseStmtIf(): propagate error bits correctly
parseStmtIf(): propagate error bits correctly

This decreases noise in diagnostics.


Swift SVN r7644

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