Inconsistency between API and structure editor

[dt-12345]

Using the Java/Python API, you're able to have components with the same name in a structure but the structure editor does not allow this. Is this inconsistency intended or is it supposed to be one way or the other? I personally would like to add duplicate names in the structure editor (e.g. for vtable structures with functions that have the same name) but I don't know if that's unwanted behavior or not. There seems to be a brief discussion of duplicate names in #6450 but I don't see any definitive answer.