x/text/language: ExampleMatcher test is broken

[ameowlia]

What version of Go are you using (go version)?

go version go1.17 darwin/amd64

Does this issue reproduce with the latest release?

Yes.

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/adowns/Library/Caches/go-build"
GOENV="/Users/adowns/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/adowns/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/adowns/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GOVCS=""
GOVERSION="go1.17"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/Users/adowns/workspace/text/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/4c/1b3s36l94blb6xg1_4p_13800000gn/T/go-build2465748359=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

Ran the example for language.Matcher. See website here.

What did you expect to see?

A working example.

What did you see instead?

go: finding module for package golang.org/x/text/language
go: downloading golang.org/x/text v0.3.7
./prog.go:84:1: syntax error: unexpected EOF, expecting }

Also, once I fixed the syntax error, the test was failing.

[gopherbot]

Change https://golang.org/cl/349552 mentions this issue: language: fix ExampleMatcher test

[gopherbot]

Change https://golang.org/cl/350995 mentions this issue: cmd/compile: fix ExampleInfo output