…uild 6.0.1xx-rc1-3793f6e34c40e3aa1a00d0dbe6dd0d706283e197-1

Microsoft.Android.Sdk.Windows
 From Version 31.0.100-rc.1.12 -> To Version 31.0.100-rc.1.16

Dependency coherency updates

Microsoft.NETCore.App.Ref,Microsoft.Dotnet.Sdk.Internal,Microsoft.Extensions.Primitives,Microsoft.AspNetCore.App.Runtime.win-x64,Microsoft.Extensions.Hosting,Microsoft.Extensions.Hosting.Abstractions,Microsoft.Extensions.DependencyInjection.Abstractions,Microsoft.Extensions.DependencyInjection,Microsoft.Extensions.Configuration.Abstractions,Microsoft.Extensions.Configuration,Microsoft.Extensions.Logging.Abstractions,Microsoft.Extensions.Logging,Microsoft.Extensions.Logging.Console,Microsoft.Extensions.Logging.Debug,Microsoft.Extensions.FileProviders.Abstractions,Microsoft.AspNetCore.Authorization,Microsoft.AspNetCore.Components.WebView,Microsoft.AspNetCore.Components.Web,Microsoft.JSInterop,Microsoft.WindowsDesktop.App.Runtime.win-x64,System.CodeDom
 From Version 6.0.0-rc.1.21426.8 -> To Version 6.0.0-rc.1.21451.13 (parent: Microsoft.Dotnet.Sdk.Internal

Razor Source Generator needs at least 10.0

Context: dotnet/sdk@10efeed...454eae3

This was removed from the dotnet/sdk:

    <!-- Required to support incremental source generator -->
    <LangVersion Condition="'$(UseRazorSourceGenerator)' != '' ">preview</LangVersion>

So I think we need to opt into `preview` to build with the older
Roslyn in VS.

This apparently breaks NUnit `Assert.That()` calls.

I could build the project locally after this change.

This reverts commit 85ce42d.

I think we might also be hitting some method overloading issues in these test failures:

* `CanAddMultipleEventsViaMultipleConfigureLifecycleEvents`
* `CanAddMultipleEventsViaBuilder`
* `EventsFireExactlyOnce`

This reverts commit 90c233d.

This solves 3 test failures:

    > .\bin\dotnet\dotnet.exe test src\Core\tests\UnitTests\Core.UnitTests-net6.csproj -bl
    ...
    [xUnit.net 00:00:00.60]     CanAddMultipleEventsViaMultipleConfigureLifecycleEvents [FAIL]
    Failed CanAddMultipleEventsViaMultipleConfigureLifecycleEvents [10 ms]
    Error Message:
        Assert.Equal() Failure
        Expected: 1
        Actual:   0
    Stack Trace:
        at Microsoft.Maui.UnitTests.LifecycleEvents.LifecycleEventsTests.CanAddMultipleEventsViaMultipleConfigureLifecycleEvents() in C:\src\maui\src\Core\tests\UnitTests\LifecycleEvents\LifecycleEventsTests.cs:line 134
    [xUnit.net 00:00:00.62]     EventsFireExactlyOnce [FAIL]
    [xUnit.net 00:00:00.62]     CanAddMultipleEventsViaBuilder [FAIL]
    Failed EventsFireExactlyOnce [2 ms]
    Error Message:
        Assert.Equal() Failure
        Expected: 1
        Actual:   0
    Stack Trace:
        at Microsoft.Maui.UnitTests.LifecycleEvents.LifecycleEventsTests.EventsFireExactlyOnce() in C:\src\maui\src\Core\tests\UnitTests\LifecycleEvents\LifecycleEventsTests.cs:line 75
    Failed CanAddMultipleEventsViaBuilder [2 ms]
    Error Message:
        Assert.Equal() Failure
        Expected: 1
        Actual:   0
    Stack Trace:
        at Microsoft.Maui.UnitTests.LifecycleEvents.LifecycleEventsTests.CanAddMultipleEventsViaBuilder() in C:\src\maui\src\Core\tests\UnitTests\LifecycleEvents\LifecycleEventsTests.cs:line 156
    Failed!  - Failed:     3, Passed:   367, Skipped:     0, Total:   370, Duration: 192 ms - Microsoft.Maui.UnitTests.dll (net6.0)

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