> In that case you wouldn't be affected by this patch; unshare_body uses > mostly_copy_tree_r, which has its own special case for STATEMENT_LIST.
Right, I added it precisely to support statement expressions in Ada (instead of changing copy_tree_r) since we never want to copy them in the unsharing phase. That's why I find the change to copy_tree_r questionable. -- Eric Botcazou
