Ambiguity in adding `Vcat` and `Fill`

[jishnub]

This seems broken with FillArrays v0.13.8

julia> x = Vcat(1:2)
vcat(2-element UnitRange{Int64}):
 1
 2

julia> y = Fill(2, 2)
2-element Fill{Int64}, with entries equal to 2

julia> x + y
ERROR: MethodError: +(::ApplyArray{Int64, 1, typeof(vcat), Tuple{UnitRange{Int64}}}, ::Fill{Int64, 1, Tuple{Base.OneTo{Int64}}}) is ambiguous.

Candidates:
  +(a::AbstractArray, b::FillArrays.AbstractFill)
    @ FillArrays ~/.julia/packages/FillArrays/VUZcr/src/fillalgebra.jl:242
  +(A::Vcat, B::AbstractArray)
    @ LazyArrays ~/Dropbox/JuliaPackages/LazyArrays.jl/src/lazyconcat.jl:628

Possible fix, define
  +(::Vcat, ::FillArrays.AbstractFill)

Stacktrace:
 [1] top-level scope
   @ REPL[5]:1

[jishnub]

Fixed on FillArrays v0.13.9