- add model for Ticket #1964

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@14193 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

Author: Jens Frenkel

Compiler/BackEnd/BackendDAEOptimize.mo

@@ -1870,10 +1870,6 @@ algorithm
       then (cr,k,es,syst,shared,eqTy);
     case ({var,var2},BackendDAE.EQUATION(exp=e1,scalar=e2,source=source),syst as BackendDAE.EQSYSTEM(orderedVars=vars,orderedEqs=eqns),shared)
       equation
-        // variable time not there and no parameter(fixed=false)
-        //knvars = BackendVariable.daeKnVars(shared);
-        //((_,(false,_,_,_,_))) = Expression.traverseExpTopDown(e1, traversingTimeEqnsFinder, (false,vars,knvars,false,false));
-        //((_,(false,_,_,_,_))) = Expression.traverseExpTopDown(e2, traversingTimeEqnsFinder, (false,vars,knvars,false,false));
         cr = BackendVariable.varCref(var);
         cre = Expression.crefExp(cr);
         (es,{}) = ExpressionSolve.solve(e1,e2,cre);
@@ -1882,10 +1878,6 @@ algorithm
       then (cr,k,es,syst,shared,eqTy);        
     case ({var2,var},BackendDAE.EQUATION(exp=e1,scalar=e2,source=source),syst as BackendDAE.EQSYSTEM(orderedVars=vars,orderedEqs=eqns),shared)
       equation
-        // variable time not there and no parameter(fixed=false)
-        //knvars = BackendVariable.daeKnVars(shared);
-        //((_,(false,_,_,_,_))) = Expression.traverseExpTopDown(e1, traversingTimeEqnsFinder, (false,vars,knvars,false,false));
-        //((_,(false,_,_,_,_))) = Expression.traverseExpTopDown(e2, traversingTimeEqnsFinder, (false,vars,knvars,false,false));
         cr = BackendVariable.varCref(var);
         cre = Expression.crefExp(cr);
         (es,{}) = ExpressionSolve.solve(e1,e2,cre);