Update lib/OrdinaryDiffEqSDIRK/src/OrdinaryDiffEqSDIRK.jl

Author: ChrisRackauckas

lib/OrdinaryDiffEqSDIRK/src/OrdinaryDiffEqSDIRK.jl

@@ -14,7 +14,8 @@ import OrdinaryDiffEq: alg_order, calculate_residuals!,
                        markfirststage!, trivial_limiter!, _ode_interpolant!, 
                        UJacobianWrapper, set_new_W!, dolinsolve, get_W,
                        build_nlsolver, nlsolve!, nlsolvefail, isnewton,
-                       COEFFICIENT_MULTISTEP, mul!
+                       COEFFICIENT_MULTISTEP, mul!, isesdirk, issplit,
+                       ssp_coefficient
 using TruncatedStacktraces, MuladdMacro, MacroTools, FastBroadcast, RecursiveArrayTools
 using SciMLBase: SplitFunction
 using LinearAlgebra: I