Rollup of 5 pull requests

[GuillaumeGomez]

Successful merges:

• Add a couple tests for normalize under binder issues #90017 (Add a couple tests for normalize under binder issues)
• enable i8mm target feature on aarch64 and arm #90079 (enable i8mm target feature on aarch64 and arm)
• Fix documentation header sizes #90186 (Fix documentation header sizes)
• Tooltip overflow #90233 (Tooltip overflow)
• Changed slice.swap documentation for better readability #90257 (Changed slice.swap documentation for better readability)

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

[GuillaumeGomez]

@bors: r+ p=5 rollup=never

[bors]

📌 Commit 21b7661 has been approved by GuillaumeGomez

[rust-log-analyzer]

The job x86_64-gnu-tools failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

  IMAGE: x86_64-gnu-tools
##[endgroup]
From https://github.com/rust-lang/rust
 * branch              master     -> FETCH_HEAD
Searching for toolstate changes between 32f3887b9b9a2f0a2cd50288165152fec0d4f412 and bde236ab126a1aa7a26b46bdf5c3eadb561846f1
Rustdoc was updated
##[group]Run src/ci/scripts/verify-channel.sh
src/ci/scripts/verify-channel.sh
shell: /bin/bash --noprofile --norc -e -o pipefail {0}
env:
---
.......... (50/50)


header-size... FAILED
[ERROR] (line 27) Error: Evaluation failed: expected `16px` for key `font-size` for selector `#impl > h3.code-header`, found `17.6px`: for command `assert-css: ("#impl > h3.code-header", {"font-size": "16px"}) // 1em`



command did not execute successfully: "/node-v14.4.0-linux-x64/bin/node" "/checkout/src/tools/rustdoc-gui/tester.js" "--jobs" "16" "--doc-folder" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/rustdoc-gui/doc" "--tests-folder" "/checkout/src/test/rustdoc-gui"


Build completed unsuccessfully in 0:00:17

[GuillaumeGomez]

I guess some rustdoc PRs shouldn't be mixed...

@bors: r-