Allow queue types outside of classes

Currently the elaboration function for unpacked array types prints an error
for queues that they are not allowed inside classes. And while this error
gets triggered when declaring a property with a queue type, it also gets
triggered for other places that uses a queue type, e.g. a function return
type. The only exception is signals which uses a different internal code
path when elaborating queue types.

Move the error message, that is class property specific, to the class
property elaboration. This also makes sure that the error messages
references the line where the property is declared and not the line where
the type is declared.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

elab_scope.cc

@@ -50,6 +50,7 @@
 # include  "netlist.h"
 # include  "netclass.h"
 # include  "netenum.h"
+# include  "netqueue.h"
 # include  "parse_api.h"
 # include  "util.h"
 # include  <typeinfo>
@@ -557,6 +558,13 @@ static void elaborate_scope_class(Design*des, NetScope*scope, PClass*pclass)
 		       << "  Property " << cur->first
 		       << " type=" << *tmp << endl;
 	    }
+
+	    if (dynamic_cast<const netqueue_t *> (tmp)) {
+		  cerr << cur->second.get_fileline() << ": sorry: "
+		       << "Queues inside classes are not yet supported." << endl;
+		  des->errors++;
+	    }
+
 	    use_class->set_property(cur->first, cur->second.qual, tmp);
 
       }

elab_type.cc

@@ -241,10 +241,6 @@ ivl_type_t uarray_type_t::elaborate_type_raw(Design*des, NetScope*scope) const
 
 	// Special case: if the dimension is null:nil. this is a queue.
       if (dynamic_cast<PENull*>(cur->first)) {
-	    cerr << get_fileline() << ": sorry: "
-		 << "SV queues inside classes are not yet supported." << endl;
-	    des->errors += 1;
-
 	      // FIXME: Need to set the max size if cur->second is defined
 	    ivl_type_s*res = new netqueue_t(btype, -1);
 	    return res;