cmd,std: add go.mod files

Updates #30241
Updates #30228

Change-Id: Ida0fe8263bf44e0498fed2048e22283ba5716835
Reviewed-on: https://go-review.googlesource.com/c/go/+/164622
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>

src/cmd/go.mod

+module cmd
+
+go 1.12
+
+require (
+	github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57
+	github.com/ianlancetaylor/demangle v0.0.0-20180524225900-fc6590592b44 // indirect
+	golang.org/x/arch v0.0.0-20181203225421-5a4828bb7045
+	golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67
+	golang.org/x/sys v0.0.0-20190225065934-cc5685c2db12 // indirect
+	golang.org/x/tools v0.0.0-20190307163923-6a08e3108db3
+)

src/cmd/go/testdata/script/mod_list_std.txt

@@ -24,11 +24,11 @@ stdout ^internal/x
 
 cp stdout $WORK/listdot.txt
 go list std
-stdout ^internal/x            # TODO
+stdout ^internal/x
 # TODO: cmp stdout $WORK/listdot.txt
 
 go list all
-! stdout ^internal/x            # TODO: this will exist when src/go.mod is added
+stdout ^internal/x
 ! stdout ^std/
 
 

src/go.mod

+module std
+
+go 1.12

src/make.bash

@@ -176,7 +176,7 @@ if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then
 	exit 1
 fi
 rm -f cmd/dist/dist
-GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist
+GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" GO111MODULE=off "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist
 
 # -e doesn't propagate out of eval, so check success by hand.
 eval $(./cmd/dist/dist env -p || echo FAIL=true)

src/make.bat

@@ -78,6 +78,7 @@ set GOROOT=%GOROOT_BOOTSTRAP%
 set GOOS=
 set GOARCH=
 set GOBIN=
+set GO111MODULE=off
 "%GOROOT_BOOTSTRAP%\bin\go.exe" build -o cmd\dist\dist.exe .\cmd\dist
 endlocal
 if errorlevel 1 goto fail

src/make.rc

@@ -76,7 +76,7 @@ if(~ $GOROOT_BOOTSTRAP $GOROOT){
 echo 'Building Go cmd/dist using '^$GOROOT_BOOTSTRAP
 if(~ $#vflag 1)
 	echo cmd/dist
-GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
+GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' GO111MODULE=off $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
 
 eval `{./cmd/dist/dist env -9}
 if(~ $#vflag 1)