* MIPS: fixed a_call_name and a_call_reg methods to workaround a bug in GAS <2.21, see comments in source for details.
+ g_external_wrapper method.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@23565 3ad0048d-3df7-0310-abae-a5850022a9f2