fix final type uncertainty

Author: Jutho

base/abstractarray.jl

@@ -1054,10 +1054,9 @@ function sub2ind{T<:Integer}(dims::Tuple{Vararg{Integer}}, I::AbstractVector{T}.
     return indices
 end
 
-function ind2sub{T<:Integer}(dims::Tuple{Vararg{Integer}}, ind::AbstractVector{T})
-    N = length(dims)
+function ind2sub{N,T<:Integer}(dims::NTuple{N,Integer}, ind::AbstractVector{T})
     M = length(ind)
-    t = [Array{T}(M) for j=1:N]
+    t = NTuple{N,Vector{T}}(ntuple(N,n->Array{T}(M)))
     copy!(t[1],ind)
     for j = 1:N-1
         d = dims[j]
@@ -1069,7 +1068,7 @@ function ind2sub{T<:Integer}(dims::Tuple{Vararg{Integer}}, ind::AbstractVector{T
             tj2[i] = ind2+1
         end
     end
-    return tuple(t...)
+    return t
 end
 
 function ind2sub!{T<:Integer}(sub::Array{T}, dims::Tuple{Vararg{T}}, ind::T)