Return type not inferred with invoke and keyword arguments

[nalimilan]

The example is silly, but this pattern is useful to fix ambiguities when there are multiple argument.

f(x::Integer; arg=1) = 1
f(x::Int; arg=1) = invoke(f, Tuple{Integer}, x, arg=arg)

julia> @code_warntype f(1)
Body::Any
1 1 ─ %1 = %new(NamedTuple{(:arg,),Tuple{Int64}}, 1)::NamedTuple{(:arg,),Tuple{Int64}}                                │╻╷╷╷ #f#16
  │   %2 = (getfield(Core, Symbol("#kw##invoke"))())(%1, Main.invoke, Main.f, Tuple{Integer}, x)::Any                 ││
  └──      return %2                                                                                                  │

[adienes]

this does not reproduce on master (1.11.0-DEV.413)