It is well known that the dict syntax in 0.4 has changed
julia> [1=>2,3=>4]
WARNING: deprecated syntax "[a=>b, ...]".
Use "Dict(a=>b, ...)" instead.
However, I was surprised to notice that a similar syntax still works for
dict comprehensions, without warning:
julia> [i => 2i for i = 1:3]
Dict{Int64,Int64} with 3 entries:
2 => 4
3 => 6
1 => 2
Is this intentional?
