refactor: Apply fix for clippy::needless_as_bytes

Author: alerque

fluent-syntax/src/parser/core.rs

@@ -18,7 +18,7 @@ where
     S: Slice<'s>,
 {
     pub fn new(source: S) -> Self {
-        let length = source.as_ref().as_bytes().len();
+        let length = source.as_ref().len();
         Self {
             source,
             ptr: 0,

fluent-syntax/tests/helper/mod.rs

@@ -15,7 +15,7 @@ fn adapt_pattern(pattern: &mut ast::Pattern<String>, crlf: bool) {
         match element {
             ast::PatternElement::TextElement { value } => {
                 let mut start = 0;
-                let len = value.as_bytes().len();
+                let len = value.len();
                 for (i, b) in value.as_bytes().iter().enumerate() {
                     if b == &b'\n' {
                         if crlf {