[silgen] Add SILParameterInfo::isDirectGuaranteed().
[silgen] Add SILParameterInfo::isDirectGuaranteed().

This is just a direct counterpart of SILParameterInfo::isIndirect*().

rdar://31145255

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