The -analyze-function option is very useful when debugging test failures, especially when printing or viewing exploded graphs - with this option you no longer need to delete or comment out other test cases.
But because this option accepts unqualified identifiers, it is hard to use this option in C++ tests (in which you often need to test a particular method of a particular class, but there's no way to specify the class, eg. D22374).
This patch changes -analyze-function to accept qualified names. Because -analyzer-display-progress has recently been changed to display qualified names, you can use -analyzer-display-progress to quickly lookup the exact name you need to put into -analyze-function.
Yeah, i agree it's a good idea to update the debugging tricks doc, just as soon as i get to it :)