fix changed file

Author: jacob-ronstadt

src/drivers/general/queries/PoolTagIntegral/PoolTagIntegral.ql

@@ -42,8 +42,11 @@ class ValidPoolTag extends Expr {
   }
 }
 
-from FunctionCall fc
+from FunctionCall fc, int i
 where
-  fc.getTarget() instanceof PoolTypeFunction 
-
-select fc,fc.toString()
+  fc.getTarget() instanceof PoolTypeFunction and
+  fc.getTarget().getParameter(i).getName().matches("Tag") and
+  not fc.getArgument(i) instanceof ValidPoolTag
+select fc,
+  "A non-CHAR tag was passed into a pool allocation function (actual type: " +
+    fc.getArgument(i).getUnderlyingType().getName() + ")"