Scalar collections: stop expanding bare arrays to a subquery when ToList() is composed on top

[roji]

See PrimitiveCollectionsQueryTestBase.Project_collection_of_ints_with_ToList_and_FirstOrDefault:

public virtual Task Project_collection_of_ints_with_ToList_and_FirstOrDefault(bool async)
    => AssertFirstOrDefault(
        async,
        ss => ss.Set<PrimitiveCollectionsEntity>().OrderBy(x => x.Id).Select(x => x.Ints.ToList()),
        asserter: (e, a) => AssertCollection(e, a, elementSorter: ee => ee));

SQL Server SQL:

SELECT [p0].[Id], CAST([i].[value] AS int) AS [value], [i].[key]
FROM (
    SELECT TOP(1) [p].[Id], [p].[Ints]
    FROM [PrimitiveCollectionsEntity] AS [p]
    ORDER BY [p].[Id]
) AS [p0]
OUTER APPLY OPENJSON([p0].[Ints]) AS [i] -- We should just be projecting `[p0].[Ints]` out directly, no need for OPENJSON
ORDER BY [p0].[Id], CAST([i].[key] AS int)

Cosmos SQL:

SELECT ARRAY( -- same thing, no need for an ARRAY() subquery
    SELECT VALUE i
    FROM i IN c["Ints"]) AS c
FROM root c
WHERE (c["Discriminator"] = "PrimitiveCollectionsEntity")
ORDER BY c["Id"]
OFFSET 0 LIMIT 1

This is the result of composing ToList() on top of a bare array (ToList() is one of the major things enabled by this PR)... This is actually quite complicated, since the CLR type of the array (int[]) can't just be cast (in the shaper) to a List<int>.