Fix multiple-dispatch for tree as function

Author: MilesCranmer

src/OperatorEnumConstruction.jl

@@ -11,23 +11,13 @@ function create_evaluation_helpers!(operators::OperatorEnum)
     @eval begin
         Base.print(io::IO, tree::Node) = print(io, string_tree(tree, $operators))
         Base.show(io::IO, tree::Node) = print(io, string_tree(tree, $operators))
-        function (tree::Node{T})(
-            X::AbstractArray{T,2}; kws...
-        )::AbstractArray{T,1} where {T<:Real}
+        function (tree::Node)(X; kws...)
             out, did_finish = eval_tree_array(tree, X, $operators; kws...)
             if !did_finish
                 out .= convert(eltype(out), NaN)
             end
             return out
         end
-        function (tree::Node{T1})(X::AbstractArray{T2,2}; kws...) where {T1<:Real,T2<:Real}
-            if T1 != T2
-                T = promote_type(T1, T2)
-                tree = convert(Node{T}, tree)
-                X = T.(X)
-            end
-            return tree(X; kws...)
-        end
         # Gradients:
         function Base.adjoint(tree::Node{T}) where {T}
             return (X; kws...) -> begin