Steps to reproduce:

• open the attached project
• open the file foo.h
• place cursor on the macro and trigger find usages
• check the highlighting of the macro inside the search results
• open main.cpp
• switch back to foo.h and trigger the find usage again

I'd expect the macroUsages to be correct no matter whether I've got a document that has a working copy or not [files are Windows formatted

\r\n

and the working copy uses only

\n

]