Handle ExceptionStack in code_typed(err)

[vchuravy]

julia> @cuda demo(A)
ERROR: InvalidIRError: compiling MethodInstance for demo(::CuDeviceVector{Float32, 1}) resulted in invalid LLVM IR
Reason: unsupported call to an unknown function (call to julia.new_gc_frame)
Reason: unsupported call to an unknown function (call to julia.push_gc_frame)
Reason: unsupported call to an unknown function (call to julia.get_gc_frame_slot)
Reason: unsupported call to an unknown function (call to julia.pop_gc_frame)
Hint: catch this exception as `err` and call `code_typed(err; interactive = true)` to introspect the erronous code with Cthulhu.j

Nowadays in the REPL the last error is in err (Not sure when that was added)

julia> err
1-element ExceptionStack:
InvalidIRError: compiling MethodInstance for demo(::CuDeviceVector{Float32, 1}) resulted in invalid LLVM IR

julia> code_typed(err; interactive = true)
ERROR: MethodError: no method matching code_typed_by_type(::Type{Tuple{Base.ExceptionStack, Vararg{Any}}}; interactive::Bool)

Closest candidates are:
  code_typed_by_type(::Type; optimize, debuginfo, world, interp) got unsupported keyword argument "interactive"
   @ Base reflection.jl:1381

Works:

code_typed(first(err.stack).exception; interactive = true)