Fix `impl_writeable_tlv_based_enum` to not require `DecodeError`

`impl_writeable_tlv_based_enum` shouldn't be assuming that
`DecodeError` is in scope, which we address here.

diff --git a/lightning/src/util/ser_macros.rs b/lightning/src/util/ser_macros.rs
index 3e1d8a9280d43da344076854739a5a81436f450b..caed542c19b6806cef2b20e849993b2f4e13dc9c 100644 (file)
--- a/lightning/src/util/ser_macros.rs
+++ b/lightning/src/util/ser_macros.rs
@@ -679,7 +679,7 @@ macro_rules! impl_writeable_tlv_based_enum {
                                                Ok($st::$tuple_variant_name(Readable::read(reader)?))
                                        }),*
                                        _ => {
-                                               Err(DecodeError::UnknownRequiredFeature)
+                                               Err($crate::ln::msgs::DecodeError::UnknownRequiredFeature)
                                        },
                                }
                        }