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Rollup merge of #46148 - SimonSapin:patch-6, r=alexcrichton

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Expand a couple points in 1.22.0 release notes

Let’s not give false hopes about `const fn` :)
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kennytm 2017-11-22 01:13:04 +08:00 committed by GitHub
commit 9a69b00512
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@ -5,9 +5,6 @@ Language
-------- --------
- [`non_snake_case` lint now allows extern no-mangle functions][44966] - [`non_snake_case` lint now allows extern no-mangle functions][44966]
- [Now accepts underscores in unicode escapes][43716] - [Now accepts underscores in unicode escapes][43716]
- [`#![feature(const_fn)]` is now no longer required for
calling const functions.][43017] It's still required for creating
constant functions.
- [`T op= &T` now works for numeric types.][44287] eg. `let mut x = 2; x += &8;` - [`T op= &T` now works for numeric types.][44287] eg. `let mut x = 2; x += &8;`
- [types that impl `Drop` are now allowed in `const` and `static` types][44456] - [types that impl `Drop` are now allowed in `const` and `static` types][44456]
@ -45,8 +42,8 @@ Cargo
Misc Misc
---- ----
- [`libbacktrace` is now available on Apple platforms.][44251] - [`libbacktrace` is now available on Apple platforms.][44251]
- [Stabilised the `compile_fail` attribute for code fences.][43949] This now - [Stabilised the `compile_fail` attribute for code fences in doc-comments.][43949]
lets you specify that a given code example will fail to compile. This now lets you specify that a given code example will fail to compile.
Compatibility Notes Compatibility Notes
------------------- -------------------