Reproduction Steps:
1. Open "BugRepro" project
2. Build to iOS
3. Open Xcode project
4. Open "Unity-iPhone/Classes/Unity/Native/Bulk_Assembly-CSharp_0.cpp"
5. Search for "MarshalingTest_ThisDoesntWork"
6 Notice that "MarshalingTest_ThisDoesntWork" method implementation is incorrect
IL2CPP_RAISE_MANAGED_EXCEPTION(il2cpp_codegen_get_marshal_directive_exception("Cannot marshal field 'data' of type 'TestStructArrayWrapper'."));

Expected behaviour: Method should include a proper function call.
Actual result: Method only throws an exception.

Reproduced on versions: Unity 5.5.2f1, 5.5.4f1, 5.6.1p3, 2017.1.0b9, 2017.2.0a3