Fix G__is_cppmacro, it just did not work, it was

checking for a typename of $MACRO$ instead of
macroInt$ or macroDouble$.

This change comes from Philippe Canal.

-- Paul Russo


git-svn-id: http://root.cern.ch/svn/root/trunk@24276 27541ba8-7e3a-0410-8455-c3a389f83636