Rename and make public ParseStream::step
diff --git a/src/group.rs b/src/group.rs
index 1f46f2b..9c44b7a 100644
--- a/src/group.rs
+++ b/src/group.rs
@@ -26,7 +26,7 @@
 
 impl<'a> ParseBuffer<'a> {
     fn parse_delimited(&self, delimiter: Delimiter) -> Result<(Span, ParseBuffer<'a>)> {
-        self.step_cursor(|cursor| {
+        self.step(|cursor| {
             if let Some((content, span, rest)) = cursor.group(delimiter) {
                 let content =
                     ParseBuffer::new(span, cursor.advance(content), self.get_unexpected());