Install all instead of ...

go1.10 introduces the cache directory. So now objects will only appear in `pkg` if
they are explicitly installed. Previous versions of go would create entries for
the transitive dependencies. So for our vendor tests running `go install -i ...`
would not create a corresponding file in `pkg` for the vendored packages since
`...` does not list vendor. Using `all` instead does include the vendored pkg,
so will include the vendored pkgs. This will likely have wider effects on go
tooling that rely on pkg. Already filed nsf/gocode#500
for gocode.

langserver/langserver_test.go

@@ -1257,12 +1257,12 @@ func lspTests(t testing.TB, ctx context.Context, h *LangHandler, c *jsonrpc2.Con
  // Install all Go packages in the $GOPATH.
  oldGOPATH := os.Getenv("GOPATH")
  os.Setenv("GOPATH", tmpDir)
- out, err := exec.Command("go", "install", "-v", "...").CombinedOutput()
+ out, err := exec.Command("go", "install", "-v", "all").CombinedOutput()
  os.Setenv("GOPATH", oldGOPATH)
  if err != nil {
  t.Fatal(err)
  }
- t.Logf("$ go install -v ...\n%s", out)
+ t.Logf("$ go install -v all\n%s", out)
 
  testOSToVFSPath = func(osPath string) string {
  return strings.TrimPrefix(osPath, util.UriToPath(util.PathToURI(tmpDir)))