- Disable running simplify after each unary elaboration

- Traverse each instantiated equation using simplify1
- cevalIfConstant on VAR variability expressions now does simplify1


git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@8521 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

OMPlot/OMPlotGUI/main.cpp

@@ -39,10 +39,10 @@ using namespace OMPlot;
 
 int main(int argc, char *argv[])
 {
-//    if (argc < 14) {
-//      printf("Usage: %s filename title legend grid plottype logx logy xlabel ylabel xrange1 xrange2 yrange1 yrange2 variables -ew true/false\n", *argv);
-//      return 1;
-//    }
+    if (argc < 14) {
+      printf("Usage: %s filename title legend grid plottype logx logy xlabel ylabel xrange1 xrange2 yrange1 yrange2 variables -ew true/false\n", *argv);
+      return 1;
+    }
     // read the arguments
     QStringList arguments;
     bool newApplication = false;