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Summary:

When I do Navigate > Jump to Definition from a protocol var, it doesn't work.

Steps to Reproduce:

Open attached project with Xcode 10.x and navigate to Protocols.swift file.

When I do Navigate > Jump to Definition, or ctrl + cmd + click, or ctrl + cmd + J :
- on Test.isSetFunc, Xcode opens a popover where you can navigate to Test.isSetFunc or Implementation.isSetFunc, as expected
- on Test.isSetVar, nothing happens
- on Implementation.isSetFunc, Xcode navigate to Test.isSetFunc, as expected
- on Implementation.isSetVar, nothing happens.

I have also posted this issue on Apple Developer Forums here :
https://forums.developer.apple.com/thread/112708

Expected Results:

When I do Navigate > Jump to Definition, or ctrl + cmd + click, or ctrl + cmd + J :
- on Test.isSetVar, Xcode should open a popover when you could navigate to Test.isSetVar or Implementation.isSetVar
- on Implementation.isSetVar, Xcode should navigate to Test.isSetVar

Actual Results:

When I do Navigate > Jump to Definition, or ctrl + cmd + click, or ctrl + cmd + J :
- on Test.isSetVar, nothing happens
- on Implementation.isSetVar, nothing happens.

Version/Build:

Xcode 10.0 and Xcode 10.1

Configuration:

macOS 10.14.2
MacBook Pro (15-inch, 2017)