Upgrade winnow to 0.5.37 am: 0c65325da3

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/winnow/+/2950810

Change-Id: I55145a8a10e0ab9f1b818f711d277ec97f02fb8f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/_tutorial/chapter_8.rs b/src/_tutorial/chapter_8.rs
new file mode 100644
index 0000000..6ff8f29
--- /dev/null
+++ b/src/_tutorial/chapter_8.rs
@@ -0,0 +1,34 @@
+//! # Chapter 8: Debugging
+//!
+//! When things inevitably go wrong, you can introspect the parsing state by running your test case
+//! with `--features debug`:
+//! ![Trace output from string example](https://raw.githubusercontent.com/winnow-rs/winnow/main/assets/trace.svg "Example output")
+//!
+//! You can extend your own parsers to show up by wrapping their body with
+//! [`trace`][crate::combinator::trace].  Going back to [`do_nothing_parser`][super::chapter_1].
+//! ```rust
+//! # use winnow::PResult;
+//! # use winnow::Parser;
+//! use winnow::combinator::trace;
+//!
+//! pub fn do_nothing_parser<'s>(input: &mut &'s str) -> PResult<&'s str> {
+//!     trace(
+//!         "do_nothing_parser",
+//!         |i: &mut _| Ok("")
+//!     ).parse_next(input)
+//! }
+//! #
+//! # fn main() {
+//! #     let mut input = "0x1a2b Hello";
+//! #
+//! #     let output = do_nothing_parser.parse_next(&mut input).unwrap();
+//! #     // Same as:
+//! #     // let output = do_nothing_parser(&mut input).unwrap();
+//! #
+//! #     assert_eq!(input, "0x1a2b Hello");
+//! #     assert_eq!(output, "");
+//! # }
+//! ```
+
+pub use super::chapter_7 as previous;
+pub use crate::_tutorial as table_of_contents;