fix SROCK handling

Author: ChrisRackauckas

src/alg_utils.jl

@@ -122,7 +122,7 @@ alg_interpretation(alg::EulerHeun) = :Stratonovich
 alg_interpretation(alg::LambaEulerHeun) = :Stratonovich
 alg_interpretation(alg::KomBurSROCK2) = :Stratonovich
 alg_interpretation(alg::RKMil{interpretation}) where {interpretation} = interpretation
-alg_interpretation(alg::SROCK1{interpretation}) where {interpretation} = interpretation
+alg_interpretation(alg::SROCK1{interpretation,E}) where {interpretation,E} = interpretation
 alg_interpretation(alg::RKMilCommute{interpretation}) where {interpretation} = interpretation
 alg_interpretation(alg::RKMilGeneral) = alg.interpretation
 alg_interpretation(alg::ImplicitRKMil{CS,AD,F,FDT,ST,N,T2,Controller,interpretation}) where {CS,AD,F,FDT,ST,N,T2,Controller,interpretation} = interpretation

src/perform_step/SROCK_perform_step.jl

@@ -73,8 +73,6 @@
         gₘ₋₂ = integrator.g(uᵢ₋₁,p,tᵢ₋₁)
         u += gₘ₋₂*W.dW
       end
-    else
-      error("Alg interpretation invalid. Use either :Ito or :Stratonovich")
     end
 
     if i < mdeg
@@ -165,8 +163,6 @@ end
         mul!(uᵢ₋₁,gₘ₋₂,W.dW)
         @.. u += uᵢ₋₁
       end
-    else
-      error("Alg interpretation invalid. Use either :Ito or :Stratonovich")
     end
 
     if i < mdeg