I have inherited a lot of classes with a "main" method that's used for GUI
sanity testing and have to go back to a command-line interface to exercise them
because they're now in modules and "Run File" isn't enabled.
Why can't "Run File" be supported for ANY class with a main() method? I realize
there are a lot of special-cases, but why can't there be a simple default for
the simple cases?
Reassigning to "core".