`bv.get_code_refs_for_type_field` does not retrieve refs for a type field if the variable type is a `typedef someStruct* variableType`

Bug Description:
bv.get_code_refs_for_type_field does not retrieve refs for a type field if the variable type is a typedef someStruct* variableType

This also impacts xrefs in UI. This appears to be unintentional as changing the type to the base struct and back to the Typedef computes the type references.

This impacts type references for all Objective-C Ivars.

Steps To Reproduce:
Please provide all steps required to reproduce the behavior:

1. Open a Binary using Objective-C w/ the objective-C workflow enabled
2. Select a class, double click the type of the first argument and navigate to it in the types view
3. Pick an ivar to target
4. list(bv.get_code_refs_for_type_field('class_<CLASSNAMEHERE>', [i for i in bv.get_type_by_name('class_<CLASSNAMEHERE>').members if i.name == '<IVARNAMEHERE>'][0].offset))
5. The list will be empty. Change the type for the first argument in the function to struct class_<CLASSNAMEHERE>*
6. Run the command again, type refs will be computed for that structure.
7. Change the type for self back to <CLASSNAMEHERE>.
8. Run the command again. The type ref is still there.

Expected Behavior:
Code references for type fields should propagate through Typedefs

Start with the bv.get_code_refs_for_type_field entry point and reproduce the Objective-C ivar case using the listed Binary Ninja workflow and commands. Trace how typedef pointer types are handled and verify that type references propagate through the typedef and appear in UI cross-references without first changing the type to its base struct.