Get more things precompiling

[ChrisRackauckas]

using OrdinaryDiffEq, DiffEqFlux

function lotka_volterra!(du, u, p, t)
  x, y = u
  α, β, δ, γ = p
  du[1] = dx = α*x - β*x*y
  du[2] = dy = -δ*y + γ*x*y
end

# Initial condition
u0 = [1.0, 1.0]

# Simulation interval and intermediary points
tspan = (0.0, 10.0)
tsteps = 0.0:0.1:10.0

# LV equation parameter. p = [α, β, δ, γ]
p = [1.5, 1.0, 3.0, 1.0]

# Setup the ODE problem, then solve
prob = ODEProblem(lotka_volterra!, u0, tspan, p)
sol = solve(prob, Tsit5())

function loss(p)
  sol = solve(prob, Tsit5(), p=p, saveat = tsteps)
  loss = sum(abs2, sol.-1)
  return loss, sol
end

callback = function (p, l, pred)
  display(l)
  # Tell sciml_train to not halt the optimization. If return true, then
  # optimization stops.
  return false
end


using SnoopCompile
tinf = @snoopi_deep DiffEqFlux.sciml_train(loss, p,
                                            cb = callback,
                                            maxiters = 100)

Before Any Precompile Work:
OrdinaryDiffEq#before_precompile
DiffEqBase#before_precompile
RecursiveFactorization@0.2
TriangularSolve@0.1.2

InferenceTimingNode: 14.156328/83.574437 on Core.Compiler.Timings.ROOT() with 586 direct children

Current:
InferenceTimingNode: 12.960856/73.177001 on Core.Compiler.Timings.ROOT() with 582 direct children

More Broadcast Reductions:
InferenceTimingNode: 12.908784/69.381704 on Core.Compiler.Timings.ROOT() with 599 direct children

but this PR causes:

Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
Exception: EXCEPTION_ACCESS_VIOLATION at 0x7ffff2440ee8 -- RtlVirtualUnwind at C:\Windows\SYSTEM32\ntdll.dll (unknown line)
in expression starting at C:\Users\accou\OneDrive\Computer\Desktop\test.jl:252

Need to isolate.