Merge pull request #1795 from SciML/composite

Update return codes on composite solutions

Author: ChrisRackauckas

src/composite_solution.jl

@@ -12,7 +12,7 @@ struct ODECompositeSolution{T, N, uType, uType2, EType, tType, rateType, P, A, I
     dense::Bool
     tslocation::Int
     destats::DE
-    retcode::Symbol
+    retcode::ReturnCode.T
 end
 
 function DiffEqBase.build_solution(prob::Union{DiffEqBase.AbstractODEProblem,

test/regression/hard_dae.jl

@@ -243,7 +243,7 @@ prob1 = ODEProblem(fun, [5, 0, 0.0], (0, 4.0), [100, 10.0])
 prob2 = ODEProblem(fun, [5, 0, 0.0], (0, 4.0), [100, 10.0])
 for prob in [prob1, prob2]
     @test solve(prob, ImplicitEuler(), dt = 1 / 2^10, adaptive = false).retcode ==
-          :ConvergenceFailure
+          ReturnCode.ConvergenceFailure
 end
 
 condition2 = (u, t, integrator) -> t == 2