write fails for non-strided SubArrays

[timholy]

julia> a = rand(5,5,5);

julia> v = view(a, 1:2:5, [1,4], :);

julia> open("/tmp/test.bin", "w") do io
           write(io, v)
       end
ERROR: ArgumentError: strides is invalid for SubArrays with indices of type Array{Int64,1}
Stacktrace:
 [1] write(::IOStream, ::SubArray{Float64,3,Array{Float64,3},Tuple{StepRange{Int64,Int64},Array{Int64,1},Base.Slice{Base.OneTo{Int64}}},false}) at ./subarray.jl:258
 [2] (::getfield(Main, Symbol("##5#6")))(::IOStream) at ./REPL[4]:2
 [3] #open#301(::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::getfield(Main, Symbol("##5#6")), ::String, ::Vararg{String,N} where N) at ./iostream.jl:369
 [4] open(::Function, ::String, ::String) at ./iostream.jl:367
 [5] top-level scope at none:0

[JeffBezanson]

I also notice the stack trace is wrong; that write method is not in subarray.jl, and it's missing the inlined frames that are in subarray.jl.