[Pharo-dev] [Pharo 5] For testing: enabled AST based syntax higlighting

Hi, For 50054 I have enabled AST based syntax highlighting for testing. The idea is to have it enabled to find out what is missing, if there are bugs. As soon as we find issues, we can turn it off again. If it works fine for 2 weeks, we can start to clean up Shout and move the Shout parser into the ECompletion package, which then would be the last user of the special token parser. (Which we should rewrite to just use the AST, too). Marcus