The DAP spec recently changed to add a new scope for the return value from a "stepOut" request. This new scope uses the "returnValue" presentation hint. See: https://github.com/microsoft/debug-adapter-protocol/issues/458 This patch implements this for gdb. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31945 Reviewed-By: Eli Zaretskii <eliz@gnu.org>