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Daniel Martí 4072608b58 cmd/vet: %s is valid for an array of stringer
vet was quiet for []stringer, but not for [N]stringer. The source of the
problem was how the recursive call used .Elem().Underlying() for arrays,
but .Elem() for slices. In the first case, the named type is dropped,
thus losing all information of attached methods.

Be consistent across slices and arrays, by dropping the Underlying call
that is causing trouble. Add regression tests too, including cases where
the element type does not implement fmt.Stringer.

Fixes #23552.

Change-Id: I0fde07d101f112d5768be0a79207ef0b3dc45f2e
Reviewed-on: https://go-review.googlesource.com/90455
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2018-01-30 14:36:11 +00:00
.github doc: add a link to the code of conduct 2017-11-13 16:48:04 +00:00
api doc, api: add type Srcset string change to go1.10 notes and API 2018-01-11 17:44:08 +00:00
doc doc: fix the closing tag in contribute.html 2018-01-29 19:08:24 +00:00
lib/time lib/time: follow redirects in curl 2018-01-24 04:39:28 +00:00
misc misc,src: add support for specifying adb flags to the android harness 2018-01-20 21:13:30 +00:00
src cmd/vet: %s is valid for an array of stringer 2018-01-30 14:36:11 +00:00
test cmd/compile: don't let spills clobber arguments 2018-01-23 21:51:55 +00:00
.gitattributes .gitattributes: prevent all magic line ending changes 2014-12-12 23:14:54 +00:00
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: update late Go 1.10 contributors 2018-01-06 04:52:00 +00:00
CONTRIBUTING.md .github: recommend 'go bug' when filing an issue 2017-07-24 17:18:34 +00:00
CONTRIBUTORS A+C: update late Go 1.10 contributors 2018-01-06 04:52:00 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README.md readme: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

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