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David Chase 5b4fafd5db cmd/compile: sort named types before unnamed in reflect 
When the local package has an explicit name instead of "",
this is necessary to get past a cgo plugin test that fails
because of a package signature mismatch.  There's something
questionable going on in the package hash generation, and
in particular it went wrong here.  Updating the sort order
helps.

This CL is a prerequisite for a pending code cleanup,
https://go-review.googlesource.com/c/go/+/393715

Updates #51734.

The failure:

GOROOT/misc/cgo/testplugin$ go test .
mkdir -p $TMPDIR/src/testplugin
rsync -a testdata/ $TMPDIR/src/testplugin
echo 'module testplugin' > $TMPDIR/src/testplugin/go.mod
mkdir -p $TMPDIR/alt/src/testplugin
rsync -a altpath/testdata/ $TMPDIR/alt/src/testplugin
echo 'module testplugin' > $TMPDIR/alt/src/testplugin/go.mod
cd $TMPDIR/alt/src/testplugin
( PWD=$TMPDIR/alt/src/testplugin GOPATH=$TMPDIR/alt go build -gcflags '' -buildmode=plugin -o $TMPDIR/src/testplugin/plugin-mismatch.so ./plugin-mismatch )
cd $TMPDIR/src/testplugin
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go build -gcflags '' -buildmode=plugin ./plugin1 )
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go build -gcflags '' -buildmode=plugin ./plugin2 )
cp plugin2.so plugin2-dup.so
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go build -gcflags '' -buildmode=plugin -o=sub/plugin1.so ./sub/plugin1 )
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go build -gcflags '' -buildmode=plugin -o=unnamed1.so ./unnamed1/main.go )
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go build -gcflags '' -buildmode=plugin -o=unnamed2.so ./unnamed2/main.go )
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go build -gcflags '' -o host.exe ./host )
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go run -gcflags '' ./checkdwarf/main.go plugin2.so plugin2.UnexportedNameReuse )
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin go run -gcflags '' ./checkdwarf/main.go ./host.exe main.main )
( PWD=$TMPDIR/src/testplugin GOPATH=$TMPDIR LD_LIBRARY_PATH=$TMPDIR/src/testplugin ./host.exe )
--- FAIL: TestRunHost (0.02s)
    plugin_test.go:187: ./host.exe: exit status 1
        2022/05/13 11:26:37 plugin.Open failed: plugin.Open("plugin1"): plugin was built with a different version of package runtime

and many more after that.

Change-Id: I0780decc5bedeea640ed0b3710867aeda5b3f725
Reviewed-on: https://go-review.googlesource.com/c/go/+/405995
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
 		2022-05-13 18:08:06 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api io: add an Err field to LimitedReader 2022-05-04 20:06:32 +00:00
doc spec: fix prose about promoted methods of embedded fields 2022-05-12 22:29:02 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc cmd/dist: add asan tests for global objects in testsanitizers package 2022-05-05 04:05:43 +00:00
src cmd/compile: sort named types before unnamed in reflect 2022-05-13 18:08:06 +00:00
test test: add test case that caused a gofrontend crash 2022-05-12 21:45:28 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Jinzhu Zhang 2022-05-08 17:28:26 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: add Jinzhu Zhang 2022-05-08 17:28:26 +00:00
LICENSE
…
PATENTS
…
README.md README.md: update wiki link 2022-04-26 16:21:18 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00

README.md

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