check-webkit-style reports false-positive whitespace/braces warning about blocks with return types as arguments in Objective-C

[David Kilzer (:ddkilzer)]

This code which contains a block argument with a return type:

    [delegate setPolicyForURL:^_WKWebsitePolicy(NSURL *url) {
        return _WKWebsitePolicyDoIt;
    }];

Triggers a false-positive warning like this:

    Place brace on its own line for function definitions.  [whitespace/braces] [4]

[David Kilzer (:ddkilzer)]

<rdar://problem/36449728>

[David Kilzer (:ddkilzer)]

Created attachment 332081 [details]
Patch v1

[EWS Watchlist]

Comment on attachment 332081 [details]
Patch v1

Attachment 332081 [details] did not pass win-ews (win):
Output: http://webkit-queues.webkit.org/results/6189452

New failing tests:
http/tests/misc/bubble-drag-events.html

[EWS Watchlist]

Created attachment 332117 [details]
Archive of layout-test-results from ews206 for win-future

The attached test failures were seen while running run-webkit-tests on the win-ews.
Bot: ews206  Port: win-future  Platform: CYGWIN_NT-6.1-2.9.0-0.318-5-3-x86_64-64bit

[David Kilzer (:ddkilzer)]

(In reply to Build Bot from comment #3)
> Comment on attachment 332081 [details]
> Patch v1
> 
> Attachment 332081 [details] did not pass win-ews (win):
> Output: http://webkit-queues.webkit.org/results/6189452
> 
> New failing tests:
> http/tests/misc/bubble-drag-events.html

FYI: There is no possible way this patch can cause a Windows layout test failure as it only changes Python code used by check-webkit-style.

[WebKit Commit Bot]

Comment on attachment 332081 [details]
Patch v1

Clearing flags on attachment: 332081

Committed r227532: <https://trac.webkit.org/changeset/227532>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.