Debugging LiveCode Builder scripts (widgets)

[Ben Rubinstein]

I'm trying to track down an obscure crashing bug in a widget.

With thanks to Mikey for 
https://github.com/macMikey/LCB-missing-manual/wiki/debugging, I've mostly 
been able to get by using 'log' as my primary debugging method, for all my 
simple scripting errors.

However in this case the problem is that under certain circumstances 
LiveCode/the widget hangs when new data is set. In this case (I'm reasonably 
certain) the log messages that are issued are never reported. The standard 
things seems to be that messages sent by 'log' are buffered, and reported when 
idle.

Are there any tips for putting out debugging info from a widget that can 
either be displayed/reported _immediately_ in LiveCode, or to some other app 
so that I can get them up to the point that it hangs?

TIA, Ben