fixup! fix BroadcastStyle promotion and broadcasted overloads

Author: vchuravy

src/broadcast.jl

@@ -21,7 +21,7 @@ function BroadcastStyle(::DArrayStyle{AStyle}, ::DArrayStyle{BStyle}) where {ASt
     DArrayStyle(BroadcastStyle(AStyle, BStyle))
 end
 
-function Broadcast.broadcasted(::DArrayStyle{Style}, f, args...)
+function Broadcast.broadcasted(::DArrayStyle{Style}, f, args...) where Style
     inner = Broadcast.broadcasted(Style(), f, args...)
     if inner <: Broadcasted
         return Broadcasted{DArrayStyle{Style}}(inner.f, inner.args, inner.axes)