abs(::Dual) defined twice

[tpapp]

On latest package master and Julia v0.6.2:

julia> using ForwardDiff
WARNING: Method definition abs(ForwardDiff.Dual{T, V, N} where N where V<:Real) in module ForwardDiff at /home/tamas/.julia/v0.6/ForwardDiff/src/dual.jl:321 overwritten at /home/tamas/.julia/v0.6/ForwardDiff/src/dual.jl:166.
WARNING: Method definition abs(ForwardDiff.Dual{T, V, N} where N where V<:Real) in module ForwardDiff at /home/tamas/.julia/v0.6/ForwardDiff/src/dual.jl:321 overwritten at /home/tamas/.julia/v0.6/ForwardDiff/src/dual.jl:166.

(other warnings elided)

[jrevels]

I'm guessing this is because you have a DiffRules installation containing JuliaDiff/DiffRules.jl#11? I'll go ahead and tag that, and open a PR to bump the DiffRules lower bound here and remove the manual abs primitive definition.

[tpapp]

Yes. Sorry for not providing the version information,

julia> Pkg.status("DiffRules")
 - DiffRules                     0.0.3+             master

julia> Pkg.status("ForwardDiff")
 - ForwardDiff                   0.7.3+             master