Subtheme doesn't inherit top and ie styles

To get subthemes to inherit, I had to change

$top_styles[$name] = $info->info['top stylesheets'];

and

$ie_styles[$name] = $info->info['ie stylesheets'];

to

$top_styles[$info->name] = $info->info['top stylesheets'];

and

$ie_styles[$info->name] = $info->info['ie stylesheets'];