LibCore: Propagate errors from Stream::*_entire_buffer

Author: https://github.com/timschumi
Commit: 9a3e95785e
Pull-request: https://github.com/SerenityOS/serenity/pull/16429
Reviewed-by: https://github.com/sin-ack ✅

Userland/Libraries/LibWebSocket/Impl/WebSocketImplSerenity.cpp

@@ -21,7 +21,7 @@ bool WebSocketImplSerenity::can_read_line()
 
 bool WebSocketImplSerenity::send(ReadonlyBytes bytes)
 {
-    return m_socket->write_entire_buffer(bytes);
+    return !m_socket->write_entire_buffer(bytes).is_error();
 }
 
 bool WebSocketImplSerenity::eof()