`BoundsError` may be made `eachindex` aware?

[jishnub]

This is an optimistic feature request, and I'm unsure if this is possible.

julia> @report_call mode=:sound fill(3, 3)
═════ 2 possible errors found ═════
┌ fill(v::Int64, dims::Int64) @ Base ./array.jl:540
│┌ fill(v::Int64, dims::Tuple{Int64}) @ Base ./array.jl:542
││┌ Vector{Int64}(::UndefInitializer, d::Tuple{Int64}) @ Core ./boot.jl:660
│││┌ Vector{Int64}(::UndefInitializer, m::Int64) @ Core ./boot.jl:647
││││┌ Memory{Int64}(::UndefInitializer, m::Int64) @ Core ./boot.jl:588
│││││ this builtin function call may throw: Core.memorynew(self::Type{Memory{Int64}}, m::Int64)
││││└────────────────────
││┌ fill!(dest::Vector{Int64}, x::Int64) @ Base ./array.jl:329
│││┌ _fill!(dest::Vector{Int64}, x::Int64) @ Base ./array.jl:333
││││┌ setindex!(A::Vector{Int64}, x::Int64, i::Int64) @ Base ./array.jl:986
│││││┌ _setindex!(A::Vector{Int64}, x::Int64, i::Int64) @ Base ./array.jl:990
││││││┌ throw_boundserror(A::Vector{Int64}, I::Tuple{Int64}) @ Base ./essentials.jl:15
│││││││ may throw: throw(BoundsError(A::Vector{Int64}, I::Tuple{Int64})::BoundsError)
││││││└────────────────────

The BoundsError would never be triggered here, as the indices are always within bounds (the loop is over eachindex). It might be helpful to detect such cases and filter these out.