lone: fix unknown auxiliary value handling

This function would overwrite existing unknown auxiliary values.
Fix it by placing them in a subtable. Also only assign that table
to the unknown key of the main table if unknown values were found.
This allows it to be garbage collected later if it's not needed.

source/lone/modules/intrinsic/linux.c

@@ -17,7 +17,7 @@
 
 #include <lone/linux.h>
 
-static void lone_auxiliary_value_to_table(struct lone_lisp *lone, struct lone_value *table, struct lone_auxiliary_vector *auxiliary)
+static void lone_auxiliary_value_to_table(struct lone_lisp *lone, struct lone_value *table, struct lone_value *unknowns, struct lone_auxiliary_vector *auxiliary)
 {
 	struct lone_value *key, *value;
 
@@ -117,10 +117,10 @@ static void lone_auxiliary_value_to_table(struct lone_lisp *lone, struct lone_va
 		value = lone_integer_create(lone, auxiliary->value.as.integer);
 		break;
 	default:
-		key = lone_intern_c_string(lone, "unknown");
-		value = lone_list_create(lone,
-		                         lone_integer_create(lone, auxiliary->type),
-		                         lone_integer_create(lone, auxiliary->value.as.integer));
+		key = lone_integer_create(lone, auxiliary->type);
+		value = lone_integer_create(lone, auxiliary->value.as.integer);
+		lone_table_set(lone, unknowns, key, value);
+		return;
 	}
 
 	lone_table_set(lone, table, key, value);
@@ -129,10 +129,15 @@ static void lone_auxiliary_value_to_table(struct lone_lisp *lone, struct lone_va
 static struct lone_value *lone_auxiliary_vector_to_table(struct lone_lisp *lone, struct lone_auxiliary_vector *auxiliary_vector)
 {
 	struct lone_value *table = lone_table_create(lone, 32, 0);
+	struct lone_value *unknowns = lone_table_create(lone, 2, 0);
 	size_t i;
 
 	for (i = 0; auxiliary_vector[i].type != AT_NULL; ++i) {
-		lone_auxiliary_value_to_table(lone, table, &auxiliary_vector[i]);
+		lone_auxiliary_value_to_table(lone, table, unknowns, &auxiliary_vector[i]);
+	}
+
+	if (unknowns->table.count) {
+		lone_table_set(lone, table, lone_intern_c_string(lone, "unknown"), unknowns);
 	}
 
 	return table;