La/pow issue

[lazarusA]

maybe more than needed.

Solves the pow issue in metal. However, is still not working, and I can see still several things like (from Cthulhu):

%285 = invoke #throw_boundserror(::CartesianIndices{2, Tuple{Base.OneTo{Int64}, Base.OneTo{Int64}}},::Tuple{Int64, Int64})::Union{}
   %287 = invoke #throw_boundserror(::Base.OneTo{Int64},::Tuple{Int64})::Union{}
   %289 = invoke #throw_boundserror(::Base.OneTo{Int64},::Tuple{Int64})::Union{}
   %291 = invoke #throw_boundserror(::CartesianIndices{2, Tuple{Base.OneTo{Int64}, Base.OneTo{Int64}}},::Tuple{Int64})::Union{}
   %293 = invoke #throw_boundserror(::CartesianIndices{2, Tuple{Base.OneTo{Int64}, Base.OneTo{Int64}}},::Tuple{Int64, Int64})::Union{}
   %295 = invoke #throw_boundserror(::Base.OneTo{Int64},::Tuple{Int64})::Union{}
   %297 = invoke #throw_boundserror(::Base.OneTo{Int64},::Tuple{Int64})::Union{}
   %308 = invoke #isapprox#912(::Int64,::Float32,::Bool,::typeof(abs),::typeof(isapprox),::Float32,::Float32)::Bool
 • %320 = invoke #isapprox#912(::Int64,::Float32,::Bool,::typeof(abs),::typeof(isapprox),::Float32,::Float32)::Bool
v  %432 = invoke #throw_inexacterror(::Symbol,::Type{UInt8},::Int64)::Union{}