change opcode size when changing intval size

sizes_pm.diff

diff --git a/config/auto/sizes.pm b/config/auto/sizes.pm
index f42aa8e..30a369d 100644
--- a/config/auto/sizes.pm
+++ b/config/auto/sizes.pm
@@ -265,6 +265,8 @@ END
     else {
         $typesref->{intval} = $intptr;
         $conf->data->set( iv => $intptr );
+        $typesref->{opcode} = $intptr;
+        $conf->data->set( opcode_t => $intptr );
     }
 }