[Bug go/60406] recover.go: test13reflect2 test failure

[boger at us dot ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60406

--- Comment #11 from boger at us dot ibm.com ---
On ppc64 BE, the call to make_code_func_reference returns the function pointer
in the .opd and not the actual address of the function.  That is what causes
the failures with this patch
https://gcc.gnu.org/ml/gcc-patches/2014-09/msg00710.html
The information in this reply fixes the regressions from this patch on ppc64
BE:
https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02282.html

Essentially the change is to dereference the function pointer in
__go_set_defering_fn when building for ppc64 BE as follows:

+#if defined(__powerpc64__) && _CALL_ELF != 2
+    g->defer->__defering_fn = *(void **)defering_fn;
+#else
+    g->defer->__defering_fn = defering_fn;
+#endif