Add a more strict check for conversions between metatypes.
Add a more strict check for conversions between metatypes.

Now it is more inline with the check performed by the verifier.

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