Record surrogates: moving ZeroValue treatment to op_Implicit

[mishun]

No description provided.

[mvkara]

LGTM

[mvkara]

Now that this test case works the nested struct collection case fails.

[<Struct; TestName("Struct record with inner complex types", [| typeof<InnerNestedRecordWithCollections> |])>]
type StructRecordWithNestedTypes = {
    DataCollection: InnerNestedRecordWithCollections array
    StructDataCollection: StructRecordWithCollectionTestCases array
    Data: InnerNestedRecordWithCollections
}

[mishun]

Adding StructRecordWithCollectionTestCases to registration list seems to make that test case work.