eliminate duplicate definition of preparePatchedSolvers in tests
eliminate duplicate definition of preparePatchedSolvers in tests

psieg/babelsberg-js,babelsberg/babelsberg-js,babelsberg/babelsberg-js,babelsberg/babelsberg-js,psieg/babelsberg-js,babelsberg/babelsberg-js,psieg/babelsberg-js,psieg/babelsberg-js