Changes

Summary

1. fixes #3700 (details)
2. use a bloc, not a symbol (details)

Commit c062207f9acabbb9e72fa5454ccb3f585a82226f by marcus.denker fixes #3700
	src/Kernel/ClassDescription.class.st (diff)
Commit 9705b7a43d6861e13cd2dbf9f7ea8333197fd06c by marcus.denker use a bloc, not a symbol
	src/Kernel/ClassDescription.class.st (diff)