all: import x/exp/maps as xmaps to distinguish from Go 1.21 "maps"

Updates #8419

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

cmd/tailscale/cli/exitnode.go

@@ -14,7 +14,7 @@ import (
 	"text/tabwriter"
 
 	"github.com/peterbourgon/ff/v3/ffcli"
-	"golang.org/x/exp/maps"
+	xmaps "golang.org/x/exp/maps"
 	"tailscale.com/ipn/ipnstate"
 	"tailscale.com/tailcfg"
 	"tailscale.com/util/cmpx"
@@ -181,7 +181,7 @@ func filterFormatAndSortExitNodes(peers []*ipnstate.PeerStatus, filterBy string)
 	}
 
 	filteredExitNodes := filteredExitNodes{
-		Countries: maps.Values(countries),
+		Countries: xmaps.Values(countries),
 	}
 
 	for _, country := range filteredExitNodes.Countries {

cmd/testwrapper/testwrapper.go

@@ -22,7 +22,7 @@ import (
 	"strings"
 	"time"
 
-	"golang.org/x/exp/maps"
+	xmaps "golang.org/x/exp/maps"
 	"tailscale.com/cmd/testwrapper/flakytest"
 )
 
@@ -270,7 +270,7 @@ func main() {
 		if len(toRetry) == 0 {
 			continue
 		}
-		pkgs := maps.Keys(toRetry)
+		pkgs := xmaps.Keys(toRetry)
 		sort.Strings(pkgs)
 		nextRun := &nextRun{
 			attempt: thisRun.attempt + 1,

util/osdiag/osdiag_windows_test.go

@@ -6,10 +6,10 @@ package osdiag
 import (
 	"errors"
 	"fmt"
+	"maps"
 	"strings"
 	"testing"
 
-	"golang.org/x/exp/maps"
 	"golang.org/x/sys/windows/registry"
 )
 

wgengine/filter/filter_test.go

@@ -14,7 +14,7 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 	"go4.org/netipx"
-	"golang.org/x/exp/maps"
+	xmaps "golang.org/x/exp/maps"
 	"tailscale.com/net/packet"
 	"tailscale.com/net/tsaddr"
 	"tailscale.com/tailcfg"
@@ -945,7 +945,7 @@ func TestCaps(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got := maps.Keys(filt.CapsWithValues(netip.MustParseAddr(tt.src), netip.MustParseAddr(tt.dst)))
+			got := xmaps.Keys(filt.CapsWithValues(netip.MustParseAddr(tt.src), netip.MustParseAddr(tt.dst)))
 			slices.Sort(got)
 			slices.Sort(tt.want)
 			if !slices.Equal(got, tt.want) {

wgengine/magicsock/endpoint.go

@@ -20,7 +20,7 @@ import (
 	"time"
 
 	"golang.org/x/crypto/poly1305"
-	"golang.org/x/exp/maps"
+	xmaps "golang.org/x/exp/maps"
 	"tailscale.com/disco"
 	"tailscale.com/ipn/ipnstate"
 	"tailscale.com/net/stun"
@@ -313,7 +313,7 @@ func (de *endpoint) addrForWireGuardSendLocked(now mono.Time) (udpAddr netip.Add
 		return udpAddr, false
 	}
 
-	candidates := maps.Keys(de.endpointState)
+	candidates := xmaps.Keys(de.endpointState)
 	if len(candidates) == 0 {
 		de.c.logf("magicsock: addrForSendWireguardLocked: [unexpected] no candidates available for endpoint")
 		return udpAddr, false

wgengine/magicsock/magicsock_test.go

@@ -31,7 +31,7 @@ import (
 	"github.com/tailscale/wireguard-go/device"
 	"github.com/tailscale/wireguard-go/tun/tuntest"
 	"go4.org/mem"
-	"golang.org/x/exp/maps"
+	xmaps "golang.org/x/exp/maps"
 	"golang.org/x/net/icmp"
 	"golang.org/x/net/ipv4"
 	"golang.org/x/net/ipv6"
@@ -1081,7 +1081,7 @@ func testTwoDevicePing(t *testing.T, d *devices) {
 			}
 		}
 		t.Helper()
-		t.Errorf("missing any connection to %s from %s", wantConns, maps.Keys(stats))
+		t.Errorf("missing any connection to %s from %s", wantConns, xmaps.Keys(stats))
 	}
 
 	addrPort := netip.MustParseAddrPort