Merge #5695

5695: Added completion for unstable features r=matklad a=Fihtangolz

Added xtask for downloading list of unstable features from the unstable book and codegen for it. Also included small changes from linter.

Co-authored-by: Dmitry <[email protected]>
Co-authored-by: Dmitry Opokin <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/xtask/tests/tidy.rs b/xtask/tests/tidy.rs
index ebd42cef7..bec3c630b 100644
--- a/xtask/tests/tidy.rs
+++ b/xtask/tests/tidy.rs
@@ -112,6 +112,8 @@ fn check_todo(path: &Path, text: &str) {
         // To support generating `todo!()` in assists, we have `expr_todo()` in
         // `ast::make`.
         "ast/make.rs",
+        // The documentation in string literals may contain anything for its own purposes
+        "completion/unstable_feature_descriptor.rs",
     ];
     if need_todo.iter().any(|p| path.ends_with(p)) {
         return;