Add validator for byte

crates/ra_syntax/src/validation/mod.rs

@@ -5,6 +5,7 @@ use crate::{
     yellow::SyntaxError,
 };
 
+mod byte;
 mod char;
 mod string;
 
@@ -12,6 +13,7 @@ pub(crate) fn validate(file: &SourceFileNode) -> Vec<SyntaxError> {
     let mut errors = Vec::new();
     for node in file.syntax().descendants() {
         let _ = visitor_ctx(&mut errors)
+            .visit::<ast::Byte, _>(self::byte::validate_byte_node)
             .visit::<ast::Char, _>(self::char::validate_char_node)
             .visit::<ast::String, _>(self::string::validate_string_node)
             .accept(node);