Setup backwards compat

Author: ChrisRackauckas

src/LinearSolve.jl

@@ -139,6 +139,15 @@ include("default.jl")
 include("init.jl")
 include("adjoint.jl")
 
+## Deprecated, remove in July 2025
+
+@static if isdefined(SciMLBase, :DiffEqArrayOperator)
+    function defaultalg(A::SciMLBase.DiffEqArrayOperator, b,
+        assump::OperatorAssumptions{Bool})
+        defaultalg(A.A, b, assump)
+    end
+end
+
 @inline function _notsuccessful(F::LinearAlgebra.QRCompactWY)
     (m, n) = size(F)
     U = view(F.factors, 1:min(m, n), 1:n)