Auto merge of #61741 - Centril:rollup-fgro5kz, r=Centril

Rollup of 11 pull requests

Successful merges:

 - #61518 (Add loops to doc list of things not stable in const fn)
 - #61526 (move some tests into subfolders)
 - #61550 (Windows 10 SDK is also required now.)
 - #61606 (Remove some legacy proc macro flavors)
 - #61652 (Mention slice patterns in array)
 - #61686 (librustc_errors: Add some more documentation)
 - #61698 (typeck: Fix const generic in repeat param ICE.)
 - #61707 (Azure: retry failed awscli installs)
 - #61715 (make sure make_ascii_lowercase actually leaves upper-case non-ASCII characters alone)
 - #61724 (core: use memcmp optimization for 128 bit integer slices)
 - #61726 (Use `for_each` in `Iterator::partition`)

Failed merges:

r? @ghost

Author: bors

.azure-pipelines/steps/run.yml

@@ -74,8 +74,9 @@ steps:
 # images, etc.
 - bash: |
     set -e
+    source src/ci/shared.sh
     sudo apt-get install -y python3-setuptools
-    pip3 install awscli --upgrade --user
+    retry pip3 install awscli --upgrade --user
     echo "##vso[task.prependpath]$HOME/.local/bin"
   displayName: Install awscli (Linux)
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Linux'))

README.md

@@ -130,9 +130,9 @@ build.
 
 MSVC builds of Rust additionally require an installation of Visual Studio 2017
 (or later) so `rustc` can use its linker.  The simplest way is to get the
-[Visual Studio Build Tools] and check the “C++ build tools” workload.
+[Visual Studio], check the “C++ build tools” and “Windows 10 SDK” workload.
 
-[Visual Studio Build Tools]: https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2019
+[Visual Studio]: https://visualstudio.microsoft.com/downloads/
 
 (If you're installing cmake yourself, be careful that “C++ CMake tools for
 Windows” doesn't get included under “Individual components”.)