* Fixed reading of float constant after changes in r20190. ppudump now read PPUs without fatal errors.
* Replaced assignment "has_errors:=true" by calling a new procedure SetHasErrors. It simplifies debugging - just set a breakpoint inside SetHasErrors and see the stack back trace to find out where the error has occurred.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@23633 3ad0048d-3df7-0310-abae-a5850022a9f2