EF.Default doesn't work for value types

[ajcvickers]

Value type can be nullable or not-nullable; doesn't work either way.

await context.Set<Post>()
    .ExecuteUpdateAsync(
        setPropertyCalls => setPropertyCalls
            .SetProperty(post => post.PublishedOn, post => EF.Default<DateTime>()));

See ResetPostPublishedOnToDefault in https://github.com/dotnet/EntityFramework.Docs/blob/main/samples/core/Miscellaneous/NewInEFCore7/ExecuteUpdateSample.cs

warn: 8/30/2022 18:22:48.438 RelationalEventId.QueryPossibleUnintendedUseOfEqualsWarning[20501] (Microsoft.EntityFrameworkCore.Query)
      Possible unintended use of method 'Equals' for arguments 'p.PublishedOn' and 'DEFAULT' of different types in a query. This comparison will always return false.
Unhandled exception. System.InvalidOperationException: The LINQ expression 'DbSet<FeaturedPost>()
    .ExecuteUpdate(setPropertyCalls => setPropertyCalls.SetProperty<DateTime>(
        propertyExpression: post => post.PublishedOn,
        valueExpression: post => EF.Default<DateTime>()))' could not be translated. Additional information: The following 'SetProperty' failed to translate: 'SetProperty(post => post.PublishedOn, post => EF.Default<DateTime>())'.  See https://go.microsoft.com/fwlink/?linkid=2101038 for more information.
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor)
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryCompilationContext.CreateQueryExecutor[TResult](Expression query)
   at Microsoft.EntityFrameworkCore.Storage.Database.CompileQuery[TResult](Expression query, Boolean async)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.CompileQueryCore[TResult](IDatabase database, Expression query, IModel model, Boolean async)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass12_0`1.<ExecuteAsync>b__0()
   at Microsoft.EntityFrameworkCore.Query.Internal.CompiledQueryCache.GetOrAddQuery[TResult](Object cacheKey, Func`1 compiler)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.ExecuteAsync[TResult](Expression query, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.ExecuteAsync[TResult](Expression expression, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.RelationalQueryableExtensions.ExecuteUpdateAsync[TSource](IQueryable`1 source, Expression`1 setPropertyCalls, CancellationToken cancellationToken)
   at NewInEfCore7.ExecuteUpdateSample.ResetPostPublishedOnToDefault[TContext]() in C:\github\EntityFramework.Docs\samples\core\Miscellaneous\NewInEFCore7\ExecuteUpdateSample.cs:line 182
   at NewInEfCore7.ExecuteUpdateSample.ResetPostPublishedOnToDefault[TContext]() in C:\github\EntityFramework.Docs\samples\core\Miscellaneous\NewInEFCore7\ExecuteUpdateSample.cs:line 191
   at NewInEfCore7.ExecuteUpdateSample.ExecuteUpdateTest[TContext]() in C:\github\EntityFramework.Docs\samples\core\Miscellaneous\NewInEFCore7\ExecuteUpdateSample.cs:line 59
   at NewInEfCore7.ExecuteUpdateSample.ExecuteUpdateTest[TContext]() in C:\github\EntityFramework.Docs\samples\core\Miscellaneous\NewInEFCore7\ExecuteUpdateSample.cs:line 61
   at Program.Main() in C:\github\EntityFramework.Docs\samples\core\Miscellaneous\NewInEFCore7\Program.cs:line 18
   at Program.<Main>()

[ajcvickers]

Now part of #28660.