Functions using values from an enum do not have xref to the enum type

[xusheng6]

Steps to repro:

1. Open the provided database
2. Go to the enum API_names in the types view
3. Add a new member with name LoadLibraryA and value 0x726774c
4. Notice the API_resolver does not populate the LoadLibraryA name
5. Re-analyze the load_wininet function, and see it does show up

After manual re-analysis

We are probably missing an analysis update not properly marking the function as needs update after we add the enum member

Database: boolean ice steps intently

[xusheng6]

Upon further investigation, I found that we are missing xref from the functions using the enum values, but do not have a variable of that type. We can see when I select the enum, the xref window only contains two functions, and do not contain load_wininet and sub_b5, and that is also the reason we miss analysis updates on them