fixed issue with not printing array instances in symbol table

tests/sprint2/test/sp2_llnode.alpha

@@ -47,11 +47,11 @@ foo (x) := {
     return x * x;
 }
 
-bar1 (a) := {
-    return a.x * a.y;
+bar1(a,b) := {
+    return a * b;
 }
 
-bar2 as (r,s) := {
+bar2(r,s) := {
     if (r < s) then {
         while (!(r < s)) {
             r := r + 1;