Base.@kwdef structs constructor ignores @atomic fields

[dpinol]

When the struct has non-atomic fields, a named args constructor is created but without the atomic field argument.

julia> Base.@kwdef mutable struct KWD
       @atomic atom::Int
       kk::String
       end
KWD

julia> methods(KWD)
# 3 methods for type constructor:
[1] KWD(; kk) in Main at util.jl:478
[2] KWD(atom::Int64, kk::String) in Main at REPL[5]:2
[3] KWD(atom, kk) in Main at REPL[5]:2

When the struct has only atomic fields, no named args constructor is created

julia> Base.@kwdef mutable struct KWD2
       @atomic atom::Int
       end

julia> methods(KWD2)
# 2 methods for type constructor:
[1] KWD2(atom::Int64) in Main at REPL[1]:2
[2] KWD2(atom) in Main at REPL[1]:2

thanks