Add exception class and message to stack trace for #271
Add exception class and message to stack trace for #271

lucaswerkmeister/ceylon.language,unratito/ceylon.language,lucaswerkmeister/ceylon.language,ceylon/ceylon.language,unratito/ceylon.language,ceylon/ceylon.language,jvasileff/ceylon.language,jvasileff/ceylon.language