Xcode 7 does not show function callers for swift 2

Question

Looks like index is kinda broken. How to fix this?
P.S. Function, of course, is getting called multiple times.

UPD: Works in Xcode 7.3

Answer 1

Looks like it's not implemented yet in the menu, but you can get the same result by selecting the function or method and right-clicking to select Find Call Hierarchy.

I found this in Apple's release notes for XCode 7.