multiline qstring

If you have a QString s = "foo\nbar\nabc" it is show as "abc" in the debugger table, removing everything except the last line.
If you double click on it, the edit box shows it at "foo bar abc", which is better, but still wrong. (sometimes the difference between \r and \n is important)

It should show it c like as "foo\nbar\nabc" and if the string is too long it could display "foo\n[...]abc"