* Dummy implementations of a_bit_scan_reg_reg and g_stackpointer_alloc in tcg, removes the need to override these methods in every descendant code generator solely to avoid "constructing a class with abstract method" warning.


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28175 3ad0048d-3df7-0310-abae-a5850022a9f2
* m68k: fixed the last remaining warning and removed "$WARNINGS OFF" directive.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28176 3ad0048d-3df7-0310-abae-a5850022a9f2