Calling SelectMany from VB throws InvalidOperationException

[EFBug.zip](https://github.com/dotnet/efcore/files/9632977/EFBug.zip)

## File a bug

There seems to be an issue with SelectMany when called from VB. The same queries work in C#. I've created an example using the Blogging database from [here](https://learn.microsoft.com/en-us/ef/core/get-started/overview/first-app?tabs=visual-studio). I've added a property Posts to the Blog object, which returns a collection of the posts associated with a blog

I've attached a zipped solution that contains the VB project along with a file CreateDatabase.sql which will create the database and add a blog and two posts. The solution also contains a C# project that references the model defined in the VB project and executes the same query that fails in VB

The following query gives an error in VB:

```VB
Dim posts = model.Blogs.Where(Function(x) x.BlogID = 1).SelectMany(Function(x) x.Posts).ToList()
```
The same query works in C#:
```C#
var posts = session.Blogs.Where(x => x.BlogID == 1).SelectMany(x => x.Posts).ToList();
```
Other variants on the query fail in the same way, for example:

```VB
Dim posts = (From b In model.Blogs, p In b.Posts Where b.BlogID = 1 Select p).ToList()
```
The exception details are as follows

```
System.InvalidOperationException
HResult=0x80131509
Message=The LINQ expression 'x => (IEnumerable)x.Posts' could not be translated. Either rewrite the query in a form that can be translated, or switch to client evaluation explicitly by inserting a call to 'AsEnumerable', 'AsAsyncEnumerable', 'ToList', or 'ToListAsync'. See https://go.microsoft.com/fwlink/?linkid=2101038 for more information.
Source=Microsoft.EntityFrameworkCore
StackTrace:
at Microsoft.EntityFrameworkCore.Query.Internal.NavigationExpandingExpressionVisitor.ProcessSelectMany(NavigationExpansionExpression source, LambdaExpression collectionSelector, LambdaExpression resultSelector)
at Microsoft.EntityFrameworkCore.Query.Internal.NavigationExpandingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at Microsoft.EntityFrameworkCore.Query.Internal.NavigationExpandingExpressionVisitor.Expand(Expression query)
at Microsoft.EntityFrameworkCore.Query.QueryTranslationPreprocessor.Process(Expression query)
at Microsoft.EntityFrameworkCore.Query.QueryCompilationContext.CreateQueryExecutor[TResult](Expression query)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass9_0`1.b__0()
at Microsoft.EntityFrameworkCore.Query.Internal.CompiledQueryCache.GetOrAddQuery[TResult](Object cacheKey, Func`1 compiler)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.Execute[TResult](Expression query)
at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryable`1.GetEnumerator()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at EFBug.Program.Main(String[] args) in C:\Temp\Saturn\EFBug\Program.vb:line 6
```
EF Core version: 6.0
Database provider: Microsoft.EntityFrameworkCore.SqlServer
Target framework: .NET 6.0
Operating system: Windows 10
IDE: Visual Studio 202 17.3.4