ArcStr now implements From<&str>.

src/ast.rs

@@ -812,7 +812,7 @@ mod tests {
 		];
 
 		for (input, expected_ast) in cases {
-			let mut parser = Parser::new(ArcStr::from(input.to_owned()));
+			let mut parser = Parser::new(input.into());
 			let ast = Ast::parse_from(&mut parser)
 				.unwrap_or_else(|err| panic!("Unable to parse input {input:?}: {}", err.pretty()));
 			assert_eq!(ast, expected_ast, "Ast differed for {input:?}");

src/util/arc_str.rs

@@ -163,6 +163,12 @@ impl Borrow<str> for ArcStr {
 	}
 }
 
+impl From<&'_ str> for ArcStr {
+	fn from(s: &str) -> Self {
+		Self::from(s.to_owned())
+	}
+}
+
 impl From<String> for ArcStr {
 	fn from(s: String) -> Self {
 		Self::from(Arc::new(s))