…ic and mono

.NET 6.0 version of .NET 7.0 change to:
- Fix loading of msquic in System.Net.Quic..
- Fix handling of DllImportSearchPath values in DllImport and NativeLibrary.

Differences:
- No NativeAOT
- Tests use explicit Main (before test consolidation)

[manual] Merge branch 'release/6.0-staging' => 'release/6.0'

…-merge-6.0-2023-04-11-1027

….0-2023-04-11-1027

Merging internal commits for release/6.0

…tnet#84703)

* Update dependencies from https://github.com/dotnet/arcade build 20230411.7

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 6.0.0-beta.23167.1 -> To Version 6.0.0-beta.23211.7

* Update dependencies from https://github.com/dotnet/emsdk build 20230412.1

Microsoft.NET.Workload.Emscripten.Manifest-6.0.100 , Microsoft.NET.Workload.Emscripten.Manifest-6.0.300 , Microsoft.NET.Workload.Emscripten.Manifest-6.0.400
 From Version 6.0.17 -> To Version 6.0.17

---------

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

…g in wasm (dotnet#84740)

* [6.0-staging] Bump branding to 6.0.18 (dotnet#84596)

* Fix null being passed to g_path_get_dirname when probing in wasm

* Update src/mono/mono/metadata/native-library.c

Co-authored-by: Aleksey Kliger (λgeek) <akliger@gmail.com>

* Revert versioning changes brought from staging.

---------

Co-authored-by: Carlos Sánchez López <1175054+carlossanlop@users.noreply.github.com>
Co-authored-by: Katelyn Gadd <kg@luminance.org>
Co-authored-by: Aleksey Kliger (λgeek) <akliger@gmail.com>

…#84939)

Backport of dotnet#81917

This isn't in use, so there's no need to build and ship it. Instead, this is being moved to the mono windows x64 public leg.

Co-authored-by: Steve Pfister <steve.pfister@microsoft.com>