* ppudump: JSON output of pointers and ordinal definitions.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24405 3ad0048d-3df7-0310-abae-a5850022a9f2
* ppudump: Write errors to StdErr and write warnings to StdErr when output to JSON.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24406 3ad0048d-3df7-0310-abae-a5850022a9f2