[JL][XLA Binding] executable serialization + allocator/compiled stats

[csvance]

Julia part of the changes originally contained in #3277

[wsmoses]

Error in testset executable serialization:
Error During Test at D:\a\Reactant.jl\Reactant.jl\test\core\executable_serialization.jl:21
  Got exception outside of a @test
  MethodError: no method matching unsafe_wrap(::Type{Reactant.XLA.IFRT.Array}, ::Ptr{UInt8}, ::Tuple{Int64}; own::Bool)
  
  Closest candidates are:
    unsafe_wrap(::Union{Type{Array}, Type{Array{T}}, Type{Array{T, N}}}, ::Ptr{T}, ::Tuple{Vararg{Int64, N}}; own) where {T, N}
     @ Base pointer.jl:85
    unsafe_wrap(::Union{Type{Array}, Type{Array{T}}, Type{Array{T, N}}}, ::Ptr{T}, ::Tuple{Vararg{var"#s124", N}} where var"#s124"<:Integer; own) where {T, N}
     @ Base pointer.jl:96
    unsafe_wrap(::Union{Type{Array}, Type{Array{T}}, Type{Vector{T}}}, ::Ptr{T}, ::Integer; own) where T
     @ Base pointer.jl:90

[csvance]

@wsmoses looks like a name collision, fixing now.

[Pangoraw]

some comments about unnecessary @preserve, may not be caused by this PR but would be nice to clean at some point (also for all the device.device)

[csvance]

Looks like a memory stats test is failing on TPU, taking a look at that now: https://github.com/EnzymeAD/Reactant.jl/actions/runs/36016679351/job/107692793412?pr=3305

Test Failed at /__w/Reactant.jl/Reactant.jl/test/core/executable_serialization.jl:93
  Expression: XLA.clear_memory_stats!(device)
    Expected: Reactant.XLA.ReactantInternalError
  No exception thrown

EDIT: the test is broken for TPU, rebasing and pushing a fix shortly.