Error message in debugger not clearly visible sometimes

Error message in debugger not clearly visible sometimes

[Mariano Montone]

Hello,

     sometimes error messages are not clearly displayed in the debugger.

The error message appears truncated for long strings, and if it has 
multiple lines, then they are not properly formatted.

So I have this in my setup:

(defun debugger-insert-error-message (args)
   "Insert debugger errors in a different way."
   (when (eql (car args) 'error)
     (let ((error (second args)))
       (insert (error-message-string error))
       (newline 2))))

(advice-add 'debugger--insert-header :before 
#'debugger-insert-error-message)


Just inserts the error message in the debugger buffer before displaying 
anything else.

I think it would be nice that Emacs did this by default. What do you think?


       Mariano