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Russ Cox 1a64025f2b cmd/go: disambiguate for-test packages in failure output
Now that we can tell when a package is a split-off copy
for testing, show that in the build failures.
For example, instead of:

	# regexp/syntax
	../../regexp/syntax/parse.go:9:2: can't find import: "strings"
	# path/filepath
	../../path/filepath/match.go:12:2: can't find import: "strings"
	# flag
	../../flag/flag.go:75:2: can't find import: "strings"

we now print

	# regexp/syntax [strings.test]
	../../regexp/syntax/parse.go:9:2: can't find import: "strings"
	# path/filepath [strings.test]
	../../path/filepath/match.go:12:2: can't find import: "strings"
	# flag [strings.test]
	../../flag/flag.go:75:2: can't find import: "strings"

which gives more of a hint about what is wrong.

This is especially helpful if a package is being built multiple times,
since it explains why an error might appear multiple times:

	$ go test regexp encoding/json
	# regexp
	../../regexp/exec.go:12:9: undefined: x
	# regexp [regexp.test]
	../../regexp/exec.go:12:9: undefined: x
	FAIL	regexp [build failed]
	FAIL	encoding/json [build failed]
	$

Change-Id: Ie325796f6c3cf0e23f306066be8e65a30cb6b939
Reviewed-on: https://go-review.googlesource.com/108155
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-04-26 03:19:18 +00:00
.github github: update Pull Request template 2018-02-21 02:07:46 +00:00
api syscall: introduce Pointer type and use it instead of uintptr 2018-04-18 08:50:42 +00:00
doc doc: update "go get" HTTPS answer to mention .netrc 2018-04-25 02:49:10 +00:00
lib/time all: use HTTPS for iana.org links 2018-02-13 18:36:48 +00:00
misc misc/cgo/test: log error value in testSigprocmask 2018-04-25 20:26:39 +00:00
src cmd/go: disambiguate for-test packages in failure output 2018-04-26 03:19:18 +00:00
test cmd/compile: use intrinsic for LeadingZeros8 on amd64 2018-04-25 21:34:15 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: update email address 2018-04-14 19:28:37 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS C: add Iskander Sharipov's individual CLA mail 2018-04-16 04:49:46 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE
PATENTS
README.md README: update number of contributors 2018-04-03 22:10:32 +00:00
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