Rename and make public ParseStream::step
diff --git a/src/mac.rs b/src/mac.rs
index b08c8a1..4bffb55 100644
--- a/src/mac.rs
+++ b/src/mac.rs
@@ -72,7 +72,7 @@
 
 #[cfg(feature = "parsing")]
 pub fn parse_delimiter(input: ParseStream) -> Result<(MacroDelimiter, TokenStream)> {
-    input.step_cursor(|cursor| {
+    input.step(|cursor| {
         if let Some((TokenTree::Group(g), rest)) = cursor.token_tree() {
             let span = g.span();
             let delimiter = match g.delimiter() {