[Test] Adds a new test case that mimics a Codable class
[Test] Adds a new test case that mimics a Codable class

This is basically  a sort of regression test that ensures we apply proper context substitutions before checking the generic signatures of the functions

CodaFi/swift,harlanhaskins/swift,gribozavr/swift,glessard/swift,benlangmuir/swift,lorentey/swift,parkera/swift,apple/swift,rudkx/swift,jmgc/swift,JGiola/swift,sschiau/swift,allevato/swift,roambotics/swift,karwa/swift,lorentey/swift,airspeedswift/swift,rudkx/swift,CodaFi/swift,glessard/swift,lorentey/swift,stephentyrone/swift,tkremenek/swift,JGiola/swift,JGiola/swift,CodaFi/swift,gribozavr/swift,nathawes/swift,aschwaighofer/swift,shahmishal/swift,CodaFi/swift,hooman/swift,karwa/swift,nathawes/swift,sschiau/swift,atrick/swift,karwa/swift,lorentey/swift,allevato/swift,jmgc/swift,hooman/swift,jmgc/swift,JGiola/swift,ahoppen/swift,devincoughlin/swift,gribozavr/swift,benlangmuir/swift,allevato/swift,parkera/swift,apple/swift,jckarter/swift,jmgc/swift,sschiau/swift,glessard/swift,rudkx/swift,harlanhaskins/swift,jckarter/swift,karwa/swift,devincoughlin/swift,aschwaighofer/swift,glessard/swift,atrick/swift,glessard/swift,benlangmuir/swift,gregomni/swift,nathawes/swift,ahoppen/swift,airspeedswift/swift,devincoughlin/swift,lorentey/swift,stephentyrone/swift,gribozavr/swift,parkera/swift,tkremenek/swift,allevato/swift,lorentey/swift,rudkx/swift,gregomni/swift,parkera/swift,hooman/swift,sschiau/swift,aschwaighofer/swift,nathawes/swift,rudkx/swift,atrick/swift,karwa/swift,jmgc/swift,harlanhaskins/swift,tkremenek/swift,rudkx/swift,jckarter/swift,sschiau/swift,gribozavr/swift,xwu/swift,aschwaighofer/swift,apple/swift,shahmishal/swift,jckarter/swift,glessard/swift,atrick/swift,harlanhaskins/swift,sschiau/swift,karwa/swift,hooman/swift,gregomni/swift,karwa/swift,ahoppen/swift,allevato/swift,gribozavr/swift,devincoughlin/swift,jckarter/swift,airspeedswift/swift,parkera/swift,gregomni/swift,devincoughlin/swift,atrick/swift,jmgc/swift,gribozavr/swift,harlanhaskins/swift,devincoughlin/swift,CodaFi/swift,harlanhaskins/swift,apple/swift,jmgc/swift,gribozavr/swift,benlangmuir/swift,jckarter/swift,nathawes/swift,stephentyrone/swift,apple/swift,airspeedswift/swift,gregomni/swift,stephentyrone/swift,JGiola/swift,ahoppen/swift,lorentey/swift,sschiau/swift,roambotics/swift,xwu/swift,JGiola/swift,roambotics/swift,benlangmuir/swift,shahmishal/swift,karwa/swift,tkremenek/swift,allevato/swift,aschwaighofer/swift,gregomni/swift,airspeedswift/swift,aschwaighofer/swift,devincoughlin/swift,xwu/swift,shahmishal/swift,devincoughlin/swift,hooman/swift,airspeedswift/swift,shahmishal/swift,stephentyrone/swift,apple/swift,CodaFi/swift,aschwaighofer/swift,nathawes/swift,parkera/swift,atrick/swift,shahmishal/swift,shahmishal/swift,benlangmuir/swift,hooman/swift,ahoppen/swift,airspeedswift/swift,shahmishal/swift,roambotics/swift,lorentey/swift,tkremenek/swift,roambotics/swift,sschiau/swift,stephentyrone/swift,xwu/swift,CodaFi/swift,parkera/swift,tkremenek/swift,xwu/swift,xwu/swift,roambotics/swift,allevato/swift,stephentyrone/swift,nathawes/swift,parkera/swift,xwu/swift,ahoppen/swift,jckarter/swift,harlanhaskins/swift,tkremenek/swift,hooman/swift