Produce AOT, Runtime Specific, Cross Build Executables of dotnetup

[nagilson]

For:
#52350
#51585
Also resolves #53073 by making tests use the native aot version of dotnetup.

https://dev.azure.com/dnceng/internal/_build?definitionId=1544&_a=summary

Changes include:

• The build now produces an executable of dotnetup
• The tests run on the Native AOT version of dotnetup
• The built executable of dotnetup is cross built so it is compatible with older linux versions
• The CI now uses arm64 mac for the tests where as before it was actually x64

Does not include:

• Signing of dotnetup executables
• Publishing of dotnetup executables / a place to acquire them
• There is a bug with the .NET SDK where satellite language resources files are still generated even if publish single file is true so there are unneeded publish outputs which is not fixed here.

[nagilson]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[nagilson]

Seems good, just need to get the linux executables working because the cross build container is out of disk space

[nagilson]

The first time I tried to run the standalone exe it hung - then it failed due to a 'corrupt' manifest ( different manifest versions on my dev machine) - should probably audit. This also makes me want to change the walkthrough.

xml is also being produced standalone.

[Copilot]

Pull request overview

This PR updates the dotnetup build/test/dev workflow to prefer NativeAOT-published binaries where available, and expands CI to publish AOT executables across multiple RIDs while separating “style-check” from bootstrap builds.

Changes:

• Update dotnetup test utilities to locate and run an AOT-published dotnetup binary (with managed fallback).
• Add CI stages/templates to publish dotnetup executables for multiple RIDs and add a dedicated style-check stage.
• Adjust installer/dotnetup interop and build properties (mutex robustness, P/Invoke attributes, analyzer enforcement, test runtime install gating).

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
test/dotnetup.Tests/Utilities/DotnetupTestUtilities.cs	Search for AOT publish output first (then managed output) when locating dotnetup.
test/dotnetup.Tests/DnupE2Etest.cs	Clarify DOTNET_ROOT behavior when running managed vs AOT dotnetup.
src/Installer/Microsoft.Dotnet.Installation/Microsoft.Dotnet.Installation.csproj	Suppress SYSLIB1054 and relax style/code-analysis enforcement during bootstrap builds.
src/Installer/Microsoft.Dotnet.Installation/Internal/ScopedMutex.cs	Increase mutex timeout and handle AbandonedMutexException as success.
src/Installer/Microsoft.Dotnet.Installation/Internal/HostFxrWrapper.cs	Add unmanaged calling convention annotation for LoadLibraryExW.
src/Installer/installer.code-workspace	VS Code workflow improvements (target framework input; publish-aot preLaunchTask).
src/Installer/dotnetup/WindowsPathHelper.cs	Adjust LibraryImport signature/marshalling for SendMessageTimeout.
src/Installer/dotnetup/Telemetry/TelemetryCommonProperties.cs	Refactor dev-build detection to share env-var logic between configs.
src/Installer/dotnetup/dotnetup.csproj	Disable code-style enforcement and CA warnings-as-errors during bootstrap builds.
src/Installer/dotnetup/.vscode/launch.json	Add target framework input to avoid hardcoding net10.0 in debug path.
eng/restore-toolset.sh	Allow skipping shared framework installs via DOTNET_INSTALL_TEST_RUNTIMES=false.
eng/restore-toolset.ps1	Allow skipping shared framework installs via DOTNET_INSTALL_TEST_RUNTIMES=false.
eng/pipelines/templates/jobs/dotnetup/dotnetup-tests.yml	Publish dotnetup AOT before running tests; add disk cleanup step on Unix.
eng/pipelines/templates/jobs/dotnetup/dotnetup-library-package.yml	Disable code-style enforcement for the library package build leg.
eng/pipelines/templates/jobs/dotnetup/dotnetup-executables.yml	New template to publish per-RID AOT executables and publish artifacts/binlogs.
documentation/manpages/tool/run_docker.sh	Change docker build to use an explicit Dockerfile path.
documentation/manpages/tool/Dockerfile	Remove the previous manpage-tool Dockerfile.
.vsts-dnup-pr.yml	Narrow restore scope; enforce CA warnings-as-errors in the warn-as-error leg; add executable build stage.
.vsts-dnup-ci.yml	Add style-check stage and per-RID executable publish stages; define cross-build containers.

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[dsplaisted]

I don't follow all of the AzDO pipelines yaml, but looks good.