[AST] Enclose value of writtenType attribute in quotes
[AST] Enclose value of writtenType attribute in quotes

Prior to this change, writtentType value was not enclosed in single quotes and could contain spaces (e.g. `writtenType='[[String : String]]'`). With this change, the value is enclosed in quotes matching the rendering of the `type` attribute.
zisko/swift,hughbe/swift,calebd/swift,jmgc/swift,devincoughlin/swift,xedin/swift,karwa/swift,deyton/swift,jmgc/swift,hooman/swift,practicalswift/swift,airspeedswift/swift,jopamer/swift,bitjammer/swift,natecook1000/swift,jmgc/swift,tardieu/swift,djwbrown/swift,adrfer/swift,shajrawi/swift,kstaring/swift,zisko/swift,karwa/swift,apple/swift,gottesmm/swift,tjw/swift,milseman/swift,kstaring/swift,aschwaighofer/swift,kperryua/swift,ken0nek/swift,gmilos/swift,austinzheng/swift,arvedviehweger/swift,aschwaighofer/swift,ken0nek/swift,jopamer/swift,OscarSwanros/swift,alblue/swift,djwbrown/swift,austinzheng/swift,uasys/swift,codestergit/swift,ken0nek/swift,codestergit/swift,aschwaighofer/swift,sschiau/swift,xwu/swift,shajrawi/swift,tinysun212/swift-windows,sschiau/swift,manavgabhawala/swift,danielmartin/swift,jmgc/swift,benlangmuir/swift,dduan/swift,KrishMunot/swift,harlanhaskins/swift,amraboelela/swift,parkera/swift,kstaring/swift,shajrawi/swift,felix91gr/swift,natecook1000/swift,arvedviehweger/swift,alblue/swift,uasys/swift,amraboelela/swift,shahmishal/swift,KrishMunot/swift,milseman/swift,JGiola/swift,djwbrown/swift,kstaring/swift,deyton/swift,felix91gr/swift,tkremenek/swift,jtbandes/swift,jopamer/swift,glessard/swift,dduan/swift,modocache/swift,ben-ng/swift,shahmishal/swift,tkremenek/swift,therealbnut/swift,karwa/swift,ben-ng/swift,slavapestov/swift,kperryua/swift,lorentey/swift,tjw/swift,frootloops/swift,bitjammer/swift,deyton/swift,felix91gr/swift,therealbnut/swift,brentdax/swift,IngmarStein/swift,danielmartin/swift,ahoppen/swift,nathawes/swift,Jnosh/swift,jtbandes/swift,ahoppen/swift,jckarter/swift,felix91gr/swift,karwa/swift,brentdax/swift,sschiau/swift,shahmishal/swift,atrick/swift,shahmishal/swift,Jnosh/swift,allevato/swift,tkremenek/swift,bitjammer/swift,russbishop/swift,gregomni/swift,lorentey/swift,frootloops/swift,return/swift,jopamer/swift,ben-ng/swift,parkera/swift,JaSpa/swift,benlangmuir/swift,lorentey/swift,kperryua/swift,OscarSwanros/swift,tinysun212/swift-windows,gregomni/swift,austinzheng/swift,tinysun212/swift-windows,airspeedswift/swift,uasys/swift,SwiftAndroid/swift,tardieu/swift,tjw/swift,OscarSwanros/swift,gottesmm/swift,slavapestov/swift,SwiftAndroid/swift,hooman/swift,IngmarStein/swift,brentdax/swift,stephentyrone/swift,huonw/swift,tinysun212/swift-windows,gmilos/swift,allevato/swift,russbishop/swift,nathawes/swift,jckarter/swift,ahoppen/swift,gribozavr/swift,shahmishal/swift,roambotics/swift,amraboelela/swift,airspeedswift/swift,swiftix/swift,amraboelela/swift,jtbandes/swift,slavapestov/swift,nathawes/swift,parkera/swift,milseman/swift,allevato/swift,harlanhaskins/swift,return/swift,danielmartin/swift,frootloops/swift,gmilos/swift,arvedviehweger/swift,glessard/swift,devincoughlin/swift,adrfer/swift,tjw/swift,CodaFi/swift,IngmarStein/swift,KrishMunot/swift,ken0nek/swift,uasys/swift,austinzheng/swift,frootloops/swift,manavgabhawala/swift,alblue/swift,modocache/swift,tjw/swift,swiftix/swift,kstaring/swift,austinzheng/swift,frootloops/swift,sschiau/swift,deyton/swift,practicalswift/swift,brentdax/swift,lorentey/swift,bitjammer/swift,zisko/swift,gribozavr/swift,johnno1962d/swift,benlangmuir/swift,Jnosh/swift,OscarSwanros/swift,nathawes/swift,hooman/swift,nathawes/swift,CodaFi/swift,manavgabhawala/swift,allevato/swift,roambotics/swift,atrick/swift,ben-ng/swift,allevato/swift,dreamsxin/swift,gottesmm/swift,sschiau/swift,Jnosh/swift,hooman/swift,calebd/swift,gregomni/swift,russbishop/swift,arvedviehweger/swift,russbishop/swift,milseman/swift,jmgc/swift,harlanhaskins/swift,gregomni/swift,bitjammer/swift,benlangmuir/swift,brentdax/swift,jtbandes/swift,milseman/swift,tkremenek/swift,karwa/swift,tkremenek/swift,gottesmm/swift,brentdax/swift,tkremenek/swift,adrfer/swift,milseman/swift,jckarter/swift,russbishop/swift,uasys/swift,shahmishal/swift,lorentey/swift,karwa/swift,aschwaighofer/swift,rudkx/swift,jmgc/swift,therealbnut/swift,manavgabhawala/swift,johnno1962d/swift,kperryua/swift,milseman/swift,KrishMunot/swift,allevato/swift,modocache/swift,JGiola/swift,nathawes/swift,sschiau/swift,hughbe/swift,IngmarStein/swift,adrfer/swift,kperryua/swift,natecook1000/swift,hughbe/swift,JaSpa/swift,harlanhaskins/swift,Jnosh/swift,uasys/swift,alblue/swift,dduan/swift,roambotics/swift,airspeedswift/swift,xedin/swift,devincoughlin/swift,felix91gr/swift,apple/swift,KrishMunot/swift,therealbnut/swift,aschwaighofer/swift,ben-ng/swift,huonw/swift,KrishMunot/swift,tardieu/swift,johnno1962d/swift,calebd/swift,apple/swift,practicalswift/swift,shahmishal/swift,xwu/swift,johnno1962d/swift,CodaFi/swift,arvedviehweger/swift,rudkx/swift,devincoughlin/swift,bitjammer/swift,deyton/swift,stephentyrone/swift,practicalswift/swift,ken0nek/swift,danielmartin/swift,jmgc/swift,tardieu/swift,xedin/swift,danielmartin/swift,CodaFi/swift,benlangmuir/swift,xwu/swift,huonw/swift,zisko/swift,xwu/swift,bitjammer/swift,devincoughlin/swift,gribozavr/swift,adrfer/swift,atrick/swift,xwu/swift,djwbrown/swift,atrick/swift,rudkx/swift,alblue/swift,jtbandes/swift,harlanhaskins/swift,stephentyrone/swift,ahoppen/swift,jopamer/swift,glessard/swift,adrfer/swift,xedin/swift,kstaring/swift,devincoughlin/swift,frootloops/swift,adrfer/swift,kperryua/swift,alblue/swift,calebd/swift,tardieu/swift,huonw/swift,jopamer/swift,amraboelela/swift,zisko/swift,CodaFi/swift,hooman/swift,johnno1962d/swift,codestergit/swift,codestergit/swift,modocache/swift,therealbnut/swift,natecook1000/swift,xedin/swift,practicalswift/swift,devincoughlin/swift,practicalswift/swift,therealbnut/swift,danielmartin/swift,johnno1962d/swift,xedin/swift,codestergit/swift,lorentey/swift,JaSpa/swift,zisko/swift,apple/swift,brentdax/swift,gmilos/swift,slavapestov/swift,IngmarStein/swift,tinysun212/swift-windows,practicalswift/swift,gottesmm/swift,tardieu/swift,allevato/swift,CodaFi/swift,jckarter/swift,ahoppen/swift,tkremenek/swift,practicalswift/swift,gmilos/swift,arvedviehweger/swift,modocache/swift,lorentey/swift,hughbe/swift,rudkx/swift,atrick/swift,uasys/swift,jtbandes/swift,natecook1000/swift,ben-ng/swift,felix91gr/swift,rudkx/swift,dduan/swift,OscarSwanros/swift,swiftix/swift,codestergit/swift,shajrawi/swift,jopamer/swift,tinysun212/swift-windows,apple/swift,russbishop/swift,harlanhaskins/swift,manavgabhawala/swift,CodaFi/swift,deyton/swift,roambotics/swift,ken0nek/swift,therealbnut/swift,hughbe/swift,JaSpa/swift,devincoughlin/swift,stephentyrone/swift,kstaring/swift,IngmarStein/swift,SwiftAndroid/swift,felix91gr/swift,JGiola/swift,tinysun212/swift-windows,hooman/swift,ahoppen/swift,atrick/swift,KrishMunot/swift,Jnosh/swift,djwbrown/swift,hooman/swift,gottesmm/swift,hughbe/swift,shajrawi/swift,stephentyrone/swift,gribozavr/swift,karwa/swift,kperryua/swift,huonw/swift,huonw/swift,danielmartin/swift,roambotics/swift,ken0nek/swift,harlanhaskins/swift,return/swift,tardieu/swift,gottesmm/swift,djwbrown/swift,swiftix/swift,roambotics/swift,gribozavr/swift,glessard/swift,hughbe/swift,calebd/swift,jckarter/swift,slavapestov/swift,modocache/swift,JaSpa/swift,dduan/swift,jtbandes/swift,codestergit/swift,xedin/swift,austinzheng/swift,OscarSwanros/swift,swiftix/swift,amraboelela/swift,shajrawi/swift,johnno1962d/swift,JGiola/swift,natecook1000/swift,alblue/swift,SwiftAndroid/swift,rudkx/swift,parkera/swift,benlangmuir/swift,slavapestov/swift,aschwaighofer/swift,apple/swift,gregomni/swift,shajrawi/swift,gmilos/swift,parkera/swift,xwu/swift,dduan/swift,calebd/swift,parkera/swift,xwu/swift,manavgabhawala/swift,return/swift,return/swift,karwa/swift,gribozavr/swift,SwiftAndroid/swift,dduan/swift,stephentyrone/swift,airspeedswift/swift,aschwaighofer/swift,swiftix/swift,gribozavr/swift,tjw/swift,nathawes/swift,return/swift,amraboelela/swift,SwiftAndroid/swift,ben-ng/swift,IngmarStein/swift,parkera/swift,deyton/swift,arvedviehweger/swift,gregomni/swift,calebd/swift,slavapestov/swift,gribozavr/swift,manavgabhawala/swift,shajrawi/swift,jckarter/swift,frootloops/swift,dreamsxin/swift,stephentyrone/swift,glessard/swift,huonw/swift,JGiola/swift,Jnosh/swift,parkera/swift,russbishop/swift,tjw/swift,SwiftAndroid/swift,lorentey/swift,zisko/swift,gmilos/swift,sschiau/swift,JaSpa/swift,modocache/swift,austinzheng/swift,JaSpa/swift,djwbrown/swift,xedin/swift,jckarter/swift,sschiau/swift,shahmishal/swift,OscarSwanros/swift,natecook1000/swift,JGiola/swift,airspeedswift/swift,glessard/swift,return/swift,airspeedswift/swift,swiftix/swift