Fix wrapping of references/pointers and qualifiers to member pointers

Also fix Go wrapping of member const function pointers.

Lib/go/go.swg

@@ -341,8 +341,6 @@
 %typemap(directorout) SWIGTYPE *
 %{ $result = *($&1_ltype)&$input; %}
 
-%apply SWIGTYPE * { SWIGTYPE *const }
-
 /* Pointer references.  */
 
 %typemap(gotype) SWIGTYPE *const&
@@ -692,6 +690,10 @@
     SWIGTYPE (CLASS::*)
     ""
 
+%apply SWIGTYPE * { SWIGTYPE *const }
+%apply SWIGTYPE (CLASS::*) { SWIGTYPE (CLASS::*const) }
+%apply SWIGTYPE & { SWIGTYPE (CLASS::*const&) }
+
 /* Go keywords.  */
 %include <gokw.swg>