[Smalltalk] Smalltalk grammar has no explicit license #4654
Description
The Smalltalk.g4 file does not have a license in any of the files that I can see. It does state that it was adapted from the Amber grammar. Amber is MIT licensed according to its README, but since MIT doesn't attach itself like GPL that doesn't mean much. Can anyone clarify what to do here? The website in the file is dead.