Update unit test by adding also auxiliary variables on exogenous variables

tests/optimal_policy/Ramsey/ramsey_ex_aux.mod

@@ -5,7 +5,7 @@
  * MONFISPOL FP7 project SSH-225149, Deliverable 1.1.2
 */
 
-var pai, c, n, r, a, junk_backward,junk_forward,junk_expectation;
+var pai, c, n, r, a, junk_endo_backward,junk_endo_forward,junk_expectation,junk_exo_backward,junk_exo_forward;
 varexo u;
 parameters beta, rho, epsilon, omega, phi, gamma;
 
@@ -20,9 +20,11 @@ model;
 a = rho*a(-1)+u;
 1/c = beta*r/(c(+1)*pai(+1));
 pai*(pai-1)/c = beta*pai(+1)*(pai(+1)-1)/c(+1)+epsilon*phi*n^(gamma+1)/omega -exp(a)*n*(epsilon-1)/(omega*c);
-junk_backward=c(+2);
-junk_forward=c(-2);
+junk_endo_backward=c(+2);
+junk_endo_forward=c(-2);
 junk_expectation=EXPECTATION(-1)(c(+1));
+junk_exo_backward=u(-2);
+junk_exo_forward=u(+2);
 exp(a)*n = c+(omega/2)*(pai-1)^2;
 end;
 
@@ -35,9 +37,11 @@ a = 0;
 pai = beta*r;
 c = find_c(0.96,pai,beta,epsilon,phi,gamma,omega);
 n = c+(omega/2)*(pai-1)^2;
-junk_backward=c;
-junk_forward=c;
+junk_endo_backward=c;
+junk_endo_forward=c;
 junk_expectation=c;
+junk_exo_backward=0;
+junk_exo_forward=0;
 end;
 
 shocks;