…ure.

…m position that originates in macros

…bank

Do not suggest adding semicolon/changing delimiters for macros in item position that originates in macros

Fixes rust-lang#91800.

Make `std::mem::needs_drop` accept `?Sized`

This change attempts to make `needs_drop` work with types like `[u8]` and `str`.

This enables code in types like `Arc<T>` that was not possible before, such as rust-lang#97676.

…=m-ou-se

Test NLL fix of bad lifetime inference for reference captured in closure.

This came up as a use-case for `thread::scope` API that only compiles successfully since `feature(nll)` got stabilized recently.

Closes rust-lang#93203 which had been re-opened for tracking this very test case to be added.

…9, r=matthiaskrgr

Add rustdoc-json regression test for rust-lang#98009

Fixes rust-lang#98009.

There was apparently nothing to be done...

cc `@matthiaskrgr`
r? `@notriddle`

Keyword docs: Link to wikipedia article for dynamic dispatch