+ added method TCGPara.locations_count

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24530 3ad0048d-3df7-0310-abae-a5850022a9f2
* refactored cg64f32.splitparaloc64 to use cgpara.locations_count

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24531 3ad0048d-3df7-0310-abae-a5850022a9f2