gopls/internal/regtest/misc: skip TestInconsistentVendoring on Windows

This test is probably detecting a real bug that exclusively affects
Windows. To avoid masking other bugs, let's skip the test on that
platform until the bug is fixed.

For golang/go#49646

Change-Id: I38c615d47454ecfd72b416fff2018973b3ae9259
Reviewed-on: https://go-review.googlesource.com/c/tools/+/364676
Trust: Bryan C. Mills <[email protected]>
Run-TryBot: Bryan C. Mills <[email protected]>
gopls-CI: kokoro <[email protected]>
TryBot-Result: Go Bot <[email protected]>
Reviewed-by: Robert Findley <[email protected]>

Author: Bryan C. Mills

gopls/internal/regtest/misc/vendor_test.go

@@ -5,6 +5,7 @@
 package misc
 
 import (
+	"runtime"
 	"testing"
 
 	. "golang.org/x/tools/internal/lsp/regtest"
@@ -26,6 +27,9 @@ var Goodbye error
 
 func TestInconsistentVendoring(t *testing.T) {
 	testenv.NeedsGo1Point(t, 14)
+	if runtime.GOOS == "windows" {
+		t.Skipf("skipping test due to flakiness on Windows: https://golang.org/issue/49646")
+	}
 
 	const pkgThatUsesVendoring = `
 -- go.mod --