Merge pull request #512 from SciML/nlsolver

Reduce reliance on DiffEqBase NLsolver

Author: ChrisRackauckas

src/StochasticDiffEq.jl

@@ -51,15 +51,23 @@ using DocStringExtensions
 
   using DiffEqBase: check_error!, is_diagonal_noise, @..
 
-  using DiffEqBase: nlsolvefail, isnewton, set_new_W!, get_W, iipnlsolve, oopnlsolve, _vec, _reshape
+using OrdinaryDiffEq: nlsolvefail, isnewton, set_new_W!, get_W, _vec, _reshape
 
-  using DiffEqBase: NLSolver
+using OrdinaryDiffEq: NLSolver
 
-  using DiffEqBase: FastConvergence, Convergence, SlowConvergence, VerySlowConvergence, Divergence
+if isdefined(OrdinaryDiffEq,:FastConvergence)
+    using OrdinaryDiffEq:
+        FastConvergence, Convergence, SlowConvergence, VerySlowConvergence, Divergence
 
-  import DiffEqBase: calculate_residuals, calculate_residuals!, nlsolve_f, unwrap_cache, islinear
+    import OrdinaryDiffEq:
+        calculate_residuals, calculate_residuals!, nlsolve_f, unwrap_cache, islinear
+else
+    using DiffEqBase:
+        FastConvergence, Convergence, SlowConvergence, VerySlowConvergence, Divergence
 
-  import DiffEqBase: iip_get_uf, oop_get_uf, build_jac_config
+    import DiffEqBase:
+        calculate_residuals, calculate_residuals!, nlsolve_f, unwrap_cache, islinear
+end
 
   import SciMLBase