Use InitializationProblem() in the SISO tests (rebase of #465)#469

ChrisRackauckas merged 1 commit into

SciML:mainSciML/ModelingToolkitStandardLibrary.jl:mainfrom

ChrisRackauckas-Claude:siso-rebaseChrisRackauckas-Claude/ModelingToolkitStandardLibrary.jl:siso-rebaseCopy head branch name to clipboard