Add loaded class to globals

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Remove trivial comment

Signed-off-by: Stefan Marr <git@stefan-marr.de>
String of symbols should be interned

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Global node doesn't need preevaluated support

Signed-off-by: Stefan Marr <git@stefan-marr.de>