* Do not attempt to retrieve caller context if initial frame is not between StackTop and frame pointer of current procedure (aka stack bottom). Reverts part of r21843, fixing regression of tests/test/cg/traise6.pp after r26843.
r26843 caused regression because it removed exception handlers, causing condition "if ExceptAddrStack<>nil" in HandleErrorAddrFrame() to become False, so it wasn't raising another exception (which would halt with code 217) but terminating directly with code 216.


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@26850 3ad0048d-3df7-0310-abae-a5850022a9f2