Check delay expressions correctly and give a better message.

This patch uses the true delay expression count not the truncated
one to check that the number of delay expressions is correct.
It also prints the actual number of expressions it found when
printing the error message.

elaborate.cc

@@ -3331,7 +3331,7 @@ void PSpecPath::elaborate(Design*des, NetScope*scope) const
 	    delete cur;
       }
 
-      switch (ndelays) {
+      switch (delays.size()) {
 	  case 1:
 	  case 2:
 	  case 3:
@@ -3340,7 +3340,7 @@ void PSpecPath::elaborate(Design*des, NetScope*scope) const
 	    break;
 	  default:
 	    cerr << get_fileline() << ": error: Incorrect delay configuration."
-		 << endl;
+		 << " Given " << delays.size() << " delay expressions." << endl;
 	    ndelays = 1;
 	    des->errors += 1;
 	    break;