The "-p run just the Preprocessor" option is very handy, but for me it often generates too much information to pour though when I'm trying to diagnose a specific macro issue.

It would be great if the preprocessor output could be enabled for a section of code, and send the output to a file and/or standard out.

e.g.:
//lint -p+
SOMECOMPLEXMACRO(a,b,c,d,e);
//lint -p-