I have created IntelliJ IDEA DOM model for my xml file and annotated one of attribute getter with converter. Converter resolves attribute value to PsiClass and implements CustomReferenceConverter.
Now I can navigate from attribute to class by Go to Declaration action.
But if I try to find usages of resolved class then Idea says No usages found in Project files.
How to make Find Usages of class return usages in xml file?