Interpreter does not respect generated function edges/world ages

```
$ ./julia -q --compile=min
julia> using Test

julia> include("test/compiler/contextual.jl")
Test Failed at /home/keno/julia/test/compiler/contextual.jl:118
  Expression: overdub(Ctx(), f) === 2
   Evaluated: 1 === 2

ERROR: LoadError: There was an error during testing
in expression starting at /home/keno/julia/test/compiler/contextual.jl:118
```