cmd: relocate cmd/go/internal/par to cmd/internal/par

Relocate cmd/go's internal/par package up a level into
cmd/internal/par, so that it can be used by other cmd/internal
packages. No change in functionality. This change is intended to be in
support of making the cmd/go script test framework available to other
commands in addition to just the Go command.

Updates #68606.

Change-Id: I920a5d5c9b362584fabdbb2305414325b42856a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/601355
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Matloob <matloob@golang.org>

src/cmd/go/internal/base/tool.go

@@ -11,7 +11,7 @@ import (
 	"path/filepath"
 
 	"cmd/go/internal/cfg"
-	"cmd/go/internal/par"
+	"cmd/internal/par"
 )
 
 // Tool returns the path to the named tool (for example, "vet").

src/cmd/go/internal/cfg/lookpath.go

@@ -5,7 +5,7 @@
 package cfg
 
 import (
-	"cmd/go/internal/par"
+	"cmd/internal/par"
 	"os/exec"
 )
 

src/cmd/go/internal/load/pkg.go

@@ -39,11 +39,11 @@ import (
 	"cmd/go/internal/modindex"
 	"cmd/go/internal/modinfo"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/par"
 	"cmd/go/internal/search"
 	"cmd/go/internal/str"
 	"cmd/go/internal/trace"
 	"cmd/go/internal/vcs"
+	"cmd/internal/par"
 	"cmd/internal/pkgpattern"
 
 	"golang.org/x/mod/modfile"

src/cmd/go/internal/modfetch/cache.go

@@ -24,8 +24,8 @@ import (
 	"cmd/go/internal/gover"
 	"cmd/go/internal/lockedfile"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/par"
 	"cmd/go/internal/robustio"
+	"cmd/internal/par"
 	"cmd/internal/telemetry/counter"
 
 	"golang.org/x/mod/module"

src/cmd/go/internal/modfetch/codehost/git.go

@@ -27,8 +27,8 @@ import (
 
 	"cmd/go/internal/base"
 	"cmd/go/internal/lockedfile"
-	"cmd/go/internal/par"
 	"cmd/go/internal/web"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/semver"
 )

src/cmd/go/internal/modfetch/codehost/vcs.go

@@ -21,8 +21,8 @@ import (
 
 	"cmd/go/internal/base"
 	"cmd/go/internal/lockedfile"
-	"cmd/go/internal/par"
 	"cmd/go/internal/str"
+	"cmd/internal/par"
 )
 
 // A VCSError indicates an error using a version control system.

src/cmd/go/internal/modfetch/fetch.go

@@ -25,10 +25,10 @@ import (
 	"cmd/go/internal/fsys"
 	"cmd/go/internal/gover"
 	"cmd/go/internal/lockedfile"
-	"cmd/go/internal/par"
 	"cmd/go/internal/robustio"
 	"cmd/go/internal/str"
 	"cmd/go/internal/trace"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/module"
 	"golang.org/x/mod/sumdb/dirhash"

src/cmd/go/internal/modfetch/repo.go

@@ -15,9 +15,9 @@ import (
 
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/par"
 	"cmd/go/internal/vcs"
 	web "cmd/go/internal/web"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/module"
 )

src/cmd/go/internal/modget/get.go

@@ -42,10 +42,10 @@ import (
 	"cmd/go/internal/imports"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/par"
 	"cmd/go/internal/search"
 	"cmd/go/internal/toolchain"
 	"cmd/go/internal/work"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/modfile"
 	"golang.org/x/mod/module"

src/cmd/go/internal/modindex/read.go

@@ -29,8 +29,8 @@ import (
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/fsys"
 	"cmd/go/internal/imports"
-	"cmd/go/internal/par"
 	"cmd/go/internal/str"
+	"cmd/internal/par"
 )
 
 // enabled is used to flag off the behavior of the module index on tip.

src/cmd/go/internal/modload/buildlist.go

@@ -21,7 +21,7 @@ import (
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/gover"
 	"cmd/go/internal/mvs"
-	"cmd/go/internal/par"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/module"
 )

src/cmd/go/internal/modload/edit.go

@@ -8,7 +8,7 @@ import (
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/gover"
 	"cmd/go/internal/mvs"
-	"cmd/go/internal/par"
+	"cmd/internal/par"
 	"context"
 	"errors"
 	"fmt"

src/cmd/go/internal/modload/import.go

@@ -21,9 +21,9 @@ import (
 	"cmd/go/internal/gover"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modindex"
-	"cmd/go/internal/par"
 	"cmd/go/internal/search"
 	"cmd/go/internal/str"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/module"
 )

src/cmd/go/internal/modload/load.go

@@ -120,9 +120,9 @@ import (
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modindex"
 	"cmd/go/internal/mvs"
-	"cmd/go/internal/par"
 	"cmd/go/internal/search"
 	"cmd/go/internal/str"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/module"
 )

src/cmd/go/internal/modload/modfile.go

@@ -20,8 +20,8 @@ import (
 	"cmd/go/internal/gover"
 	"cmd/go/internal/lockedfile"
 	"cmd/go/internal/modfetch"
-	"cmd/go/internal/par"
 	"cmd/go/internal/trace"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/modfile"
 	"golang.org/x/mod/module"

src/cmd/go/internal/modload/search.go

@@ -22,10 +22,10 @@ import (
 	"cmd/go/internal/gover"
 	"cmd/go/internal/imports"
 	"cmd/go/internal/modindex"
-	"cmd/go/internal/par"
 	"cmd/go/internal/search"
 	"cmd/go/internal/str"
 	"cmd/go/internal/trace"
+	"cmd/internal/par"
 	"cmd/internal/pkgpattern"
 
 	"golang.org/x/mod/module"

src/cmd/go/internal/mvs/mvs.go

@@ -12,7 +12,7 @@ import (
 	"sort"
 	"sync"
 
-	"cmd/go/internal/par"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/module"
 )

src/cmd/go/internal/work/shell.go

@@ -10,8 +10,8 @@ import (
 	"cmd/go/internal/cache"
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/load"
-	"cmd/go/internal/par"
 	"cmd/go/internal/str"
+	"cmd/internal/par"
 	"errors"
 	"fmt"
 	"internal/lazyregexp"

src/cmd/go/proxy_test.go

@@ -25,7 +25,7 @@ import (
 	"testing"
 
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/par"
+	"cmd/internal/par"
 
 	"golang.org/x/mod/module"
 	"golang.org/x/mod/semver"