go/analysis/internal/checker: import internal 'expect' package

Updates golang/go#70229

Change-Id: I9d646bcfabb7393c0d7168e666a62e044f3a1d03
Reviewed-on: https://go-review.googlesource.com/c/tools/+/667296
Reviewed-by: Michael Matloob <[email protected]>
Auto-Submit: Alan Donovan <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Michael Matloob <[email protected]>

Author: adonovan

go/analysis/internal/checker/fix_test.go

@@ -25,9 +25,9 @@ import (
 	"golang.org/x/tools/go/analysis/multichecker"
 	"golang.org/x/tools/go/analysis/passes/inspect"
 	"golang.org/x/tools/go/ast/inspector"
-	"golang.org/x/tools/go/expect"
 	"golang.org/x/tools/go/packages"
 	"golang.org/x/tools/internal/diff"
+	"golang.org/x/tools/internal/expect"
 	"golang.org/x/tools/internal/testenv"
 	"golang.org/x/tools/internal/testfiles"
 	"golang.org/x/tools/txtar"