Add Error::unknown_field_error

benches/bench_enum.rs

@@ -34,6 +34,8 @@ impl serde::de::Error for Error {
 
     fn end_of_stream_error() -> Error { Error::EndOfStreamError }
 
+    fn unknown_field_error(_: &str) -> Error { Error::SyntaxError }
+
     fn missing_field_error(_: &'static str) -> Error { Error::SyntaxError }
 }
 

benches/bench_map.rs

@@ -27,6 +27,8 @@ impl serde::de::Error for Error {
 
     fn end_of_stream_error() -> Error { Error::EndOfStream }
 
+    fn unknown_field_error(_: &str) -> Error { Error::SyntaxError }
+
     fn missing_field_error(_: &'static str) -> Error {
         Error::MissingField
     }

benches/bench_struct.rs

@@ -45,6 +45,8 @@ impl serde::de::Error for Error {
 
     fn end_of_stream_error() -> Error { Error::EndOfStream }
 
+    fn unknown_field_error(_: &str) -> Error { Error::SyntaxError }
+
     fn missing_field_error(_: &'static str) -> Error {
         Error::MissingField
     }

benches/bench_vec.rs

@@ -25,6 +25,8 @@ impl serde::de::Error for Error {
 
     fn end_of_stream_error() -> Error { Error::EndOfStreamError }
 
+    fn unknown_field_error(_: &str) -> Error { Error::SyntaxError }
+
     fn missing_field_error(_: &'static str) -> Error { Error::SyntaxError }
 }