* optimized get_caller_addr and get_caller_frame on i8086 by eliminating the stack frame and using si, instead of bp

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25801 3ad0048d-3df7-0310-abae-a5850022a9f2
* fixed the stack param offsets in Ptr, get_caller_addr and get_caller_frame after the stackframe elimination

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25802 3ad0048d-3df7-0310-abae-a5850022a9f2