Merge release/dev17.12 to main (#17842)

* Update azure-pipelines.yml

* Refactor CE checking (#17464) (#17493)

Co-authored-by: Vlad Zarytovskii <vzaritovsky@hotmail.com>
Co-authored-by: vzarytovskii <1260985+vzarytovskii@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Update azure-pipelines.yml

* Localized file check-in by OneLocBuild Task: Build definition ID 499: Build ID 2524346 (#17610)

* Fixes #17447 -MethodAccessException on equality comparison of a record with private fields (#17467)

* Fix17447

* tests + readme

* fixes #17541 - Equals visibility for DU's (#17548)

* update version number

* Switch to new VMR control set (#17703) (port from main) (#17788)

* Now that fsharp is on 9.0, we can switch to the new control set. Generally:
- DotNetBuildFromSource -> DotNetBuildSourceOnly - Building a source-only build.
- DotnetBuildFromSourceFlavor == Product -> DotNetBuildOrchestrator == true - Building in the VMR, could be source-only or MS's build.
- ArcadeBuildFromSource -> DotNetBuildRepo == true -> Indicates an outer repo build.
- ExcludeFromSourceBuild -> ExcludeFromSourceOnlyBuild

* Split out source build args

* Split out source build args

* Remove unnecessary source build env var set

* Add properties to the bootstrap compiler build

* BuildRepo -> BuildInnerRepo

* Only build proto repo in inner build

* Additional VMR properties for completeness

* Rename sourcebuild.props -> dotnetbuild.props

---------

Co-authored-by: Petr <psfinaki@users.noreply.github.com>

* respect generic arity in method uniqueness

* [17.12] Turn off realsig when building product and proto (#17808)

* Bugfix : make sure nullness does not break XmlDoc info import for methods and types (#17741)

* Remove nullness signal in string-based type encoding of a symbol (since it is used for xmldoc lookup)

* release notes

* Discard unused values

* Rendering AllowsRefStruct for type parameters (#17706)

* Update azure-pipelines.yml

---------

Co-authored-by: Vlad Zarytovskii <vzaritovsky@hotmail.com>
Co-authored-by: Petr <psfinaki@users.noreply.github.com>
Co-authored-by: Tomas Grosup <tomasgrosup@microsoft.com>
Co-authored-by: Kevin Ransom (msft) <codecutter@hotmail.com>
Co-authored-by: vzarytovskii <1260985+vzarytovskii@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Kevin Ransom <kevinr@microsoft.com>
Co-authored-by: Matt Mitchell <mmitche@microsoft.com>

azure-pipelines.yml

@@ -35,7 +35,7 @@ variables:
   # (since for all *new* release branches we insert into VS main and for all *previous* releases we insert into corresponding VS release),
   # i.e. 'rel/d17.9' *or* 'main' in dotnet/fsharp/refs/heads/main and 'main' in F# dotnet/fsharp/refs/heads/release/dev17.10 (latest release branch)
   - name: VSInsertionTargetBranchName
-    value: main
+    value: rel/d17.12
   - name: _TeamName
     value: FSharp
   - name: TeamName