Add a new method of getindex (#1502)

* Added a new method of getindex for an OffsetVector of tracedRNumber and tracedRArray and Base.oneto

* Updated new getindex call

* Reverting method handle

Author: jlk9

ext/ReactantOffsetArraysExt.jl

@@ -44,6 +44,13 @@ function Base.getindex(
     return getindex(parent(x), offset_indices)
 end
 
+function Base.getindex(
+    x::OffsetVector{Reactant.TracedRNumber{T}, Reactant.TracedRArray{T, 1}}, indices::Base.OneTo{Int}
+) where {T}
+    offset_indices = indices .- x.offsets[1]
+    return getindex(parent(x), offset_indices)
+end
+
 parentindex(r::OffsetArrays.IdOffsetRange, i) = i .- r.offset
 function Base.getindex(
     a::OffsetArray{<:Reactant.TracedRNumber,N}, indices::Vararg{Union{Int,AbstractArray},N}