- Fixed bug in Exp.simplify (certain divisions lead to incorrect simplifications).

- Fixed bus in printing of expressions (Exp.printExpStr) leaving out parentheses in some cases. This also required changes in testcases.


git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@2712 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

Author: Peter Aronsson