Removed redundant method set_error

Replaced usages with `set`

logos-codegen/src/lib.rs

@@ -237,7 +237,7 @@ pub fn generate(input: TokenStream) -> TokenStream {
             fn make_error(mut lex: &mut #logos_path::Lexer<'s, Self>) {
                 use #logos_path::internal::LexerInternal;
                 let error = #label(&mut lex);
-                lex.set_error(error);
+                lex.set(Err(error));
             }
         }),
         Some(leaf::Callback::Inline(inline)) => {
@@ -248,7 +248,7 @@ pub fn generate(input: TokenStream) -> TokenStream {
                 fn make_error(#arg: &mut #logos_path::Lexer<'s, Self>) {
                     use #logos_path::internal::LexerInternal;
                     let error = #body;
-                    #arg.set_error(error)
+                    #arg.set(Err(error))
                 }
             })
         }

src/internal.rs

@@ -37,8 +37,6 @@ pub trait LexerInternal<'source> {
     /// Guarantee that `token_end` is at char boundary for `&str`.
     fn error(&mut self);
 
-    fn set_error(&mut self, error: <Self::Token as Logos<'source>>::Error);
-
     fn end(&mut self);
 
     fn set(

src/lexer.rs

@@ -379,18 +379,6 @@ where
         Token::make_error(self);
     }
 
-    #[inline]
-    fn set_error(&mut self, error: Token::Error) {
-        #[cfg(not(feature = "forbid_unsafe"))]
-        {
-            self.token = core::mem::ManuallyDrop::new(Some(Err(error)));
-        }
-        #[cfg(feature = "forbid_unsafe")]
-        {
-            self.token = Some(Err(error));
-        }
-    }
-
     #[inline]
     fn end(&mut self) {
         self.token = Default::default();

src/lib.rs

@@ -81,7 +81,7 @@ pub trait Logos<'source>: Sized {
     #[doc(hidden)]
     fn make_error(lexer: &mut Lexer<'source, Self>) {
         use internal::LexerInternal as _;
-        lexer.set_error(Self::Error::default())
+        lexer.set(Err(Self::Error::default()))
     }
 }