language-sensitive. In the past, both looked at the name of the
language level and were thus were hardwired to certain behavior. Move
some of those settings into the language level itself:
- whether the stepper is supported (default #f)
- whether the debugger is supported (default #t)
- the print conversion of values for the stepper
This allows other language levels such as the DMdA levels to support
the stepper and not support the debugger.
svn: r7346
