Xcode8 - ambiguous subscript candidates are broken in issue navigator

Originator:markd
Number:rdar://27144042 Date Originated:7/1/2016
Status:Open Resolved:
Product:Developer Tools Product Version:Version 8.0 beta (8S128d)
Classification:Serious Bug Reproducible:Always
 
Summary:
I had an error with an ambiguous subscript (I don't understand the error, but hey, I'm new at Swift)

Xcode had a list of candidates for the ambiguity.  But clicking on them gave no information.  I had to go to the build log to actually get useful information.

video attached.
project attached.
screenshot attached.

Steps to Reproduce:
Have an ambiguous array index error.  Get a dozen candidates.

Expected Results:
I can browse the candidates in the issue navigator

Actual Results:
Clicking on the candidates does nothing. Double-clicking opens an empty editor window. I have to go to the build log to get any clue what's going on.

Version:
Version 8.0 beta (8S128d)
10.11.4 (15E65)


Notes:
It's really not that big a deal - just check out the build log when items in the issue navigator are inert, but
when it happens day-in, day-out, it's just another heavy-sigh
death-of-a-thousand-cuts that makes using Xcode unpleasant.


Configuration:


Attachments:
'ambugious-subscript-error.png', 'ambugious-subscript-error.mp4' and 'ClassMaker.zip' were successfully uploaded.

Comments

screenshot - http://imgur.com/a/pDF9z video - https://vimeo.com/173124434


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