Modify links

Author: Kobzol

surveys/2023-annual-survey/questions.md

@@ -630,16 +630,16 @@ Nightly or unstable feature:
 - I wish the Rust project to not add major new features (or slow down the pace of development)
 - Specialization ([RFC#1210](https://github.com/rust-lang/rust/issues/31844))
 - Generators/coroutines ([RFC#2033](https://github.com/rust-lang/rust/issues/43122))
-- Async closures ([rfc#2532](https://github.com/rust-lang/rust/issues/62290))
+- Async closures ([RFC#2532](https://github.com/rust-lang/rust/issues/62290))
 - If/while let chains ([eRFC#2497](https://github.com/rust-lang/rust/issues/53667))
 - Try blocks ([RFC#243](https://github.com/rust-lang/rust/issues/31436))
-- Never type
-- Improved traits (trait alias, implied bounds, associated type defaults) ([RFC#1733](https://github.com/rust-lang/rust/issues/41517))
+- Never type ([RFC#1216](https://github.com/rust-lang/rust/issues/35121))
+- Improved traits (trait alias, implied bounds, associated type defaults)
 - Improved const (generic const expressions, const expr for custom types, const trait methods)
 - Compile time reflection (variadic generics)
 - Enum variant types ([RFC#2593](https://github.com/rust-lang/lang-team/issues/122))
-- Allocator trait, better OOM handling
-- Stable ABI
+- Allocator trait, better OOM handling (https://github.com/rust-lang/rust/issues/32838)
+- Stable ABI (https://github.com/rust-lang/rust/issues/111423)
 - Other (please specify)
 
 > **justification**