gopls/internal/util/fakenet: move from internal/fakenet

It is used only by gopls's cmd and test/integration.

Change-Id: Ieafb86d4296e5a9e7da99b289a37bae6ef0de94b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/686975
Auto-Submit: Alan Donovan <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Robert Findley <[email protected]>

Author: adonovan

gopls/internal/cmd/serve.go

@@ -20,7 +20,7 @@ import (
 	"golang.org/x/tools/gopls/internal/lsprpc"
 	"golang.org/x/tools/gopls/internal/mcp"
 	"golang.org/x/tools/gopls/internal/protocol"
-	"golang.org/x/tools/internal/fakenet"
+	"golang.org/x/tools/gopls/internal/util/fakenet"
 	"golang.org/x/tools/internal/jsonrpc2"
 	"golang.org/x/tools/internal/tool"
 )

gopls/internal/test/integration/bench/bench_test.go

@@ -25,8 +25,8 @@ import (
 	"golang.org/x/tools/gopls/internal/test/integration"
 	"golang.org/x/tools/gopls/internal/test/integration/fake"
 	"golang.org/x/tools/gopls/internal/util/bug"
+	"golang.org/x/tools/gopls/internal/util/fakenet"
 	"golang.org/x/tools/internal/event"
-	"golang.org/x/tools/internal/fakenet"
 	"golang.org/x/tools/internal/jsonrpc2"
 	"golang.org/x/tools/internal/jsonrpc2/servertest"
 	"golang.org/x/tools/internal/pprof"