[CLASSES]: Discard DW_TAG_formal_parameter when processing classes

Only needed, so far, when processing functions, have to reenable this in the
future when we got to handle it.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>

classes.c

@@ -1818,6 +1818,9 @@ static void cu__process_class(Dwarf *dwarf, Dwarf_Die *die, struct class *class,
 		class__add_member(class, member);
 	}
 		break;
+	case DW_TAG_formal_parameter:
+		/* Discard for now */
+		goto next_sibling;
 	case DW_TAG_structure_type:
 		/*
 		 * structs within structs: C++