gopls/internal/protocol: upgrade to latest LSP

We were on 3.17.6-next.2. This CL brings us up to next.9.

Aside from extending the Client and Server types, the change is
backwards compatible. There are additional fields in
ApplyWorkspaceEditParams, CodeLensClientCapabilities,
DiagnosticClientCapabilities, WorkspaceClientCapabilities,
WorkspaceOptions.

There are new types
ClientCodeLensResolveOptions, DiagnosticCapabilities,
SnippetTextEdit, TextDocumentContentClientCapabilities,
TextDocumentContentOptions, TextDocumentContentParams,
TextDocumentContentRefreshParams,TextDocumentContentRegistrationOptions,
WorkspaceEditMetadata.

There is a new SemanticTokenType "label" (LabelType).

Change-Id: I1a7c79252d4726ab4d95bca6c1244a02a7bb62da
Reviewed-on: https://go-review.googlesource.com/c/tools/+/626095
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Robert Findley <[email protected]>

Author: pjweinbgo

gopls/internal/cmd/cmd.go

@@ -425,6 +425,10 @@ func newConnection(server protocol.Server, client *cmdClient) *connection {
 	}
 }
 
+func (c *cmdClient) TextDocumentContentRefresh(context.Context, *protocol.TextDocumentContentRefreshParams) error {
+	return nil
+}
+
 func (c *cmdClient) CodeLensRefresh(context.Context) error { return nil }
 
 func (c *cmdClient) FoldingRangeRefresh(context.Context) error { return nil }

gopls/internal/protocol/generate/main.go

@@ -31,7 +31,7 @@ const vscodeRepo = "https://github.com/microsoft/vscode-languageserver-node"
 // protocol version 3.17.0 (as declared by the metaData.version field).
 // (Point releases are reflected in the git tag version even when they are cosmetic
 // and don't change the protocol.)
-var lspGitRef = "release/protocol/3.17.6-next.2"
+var lspGitRef = "release/protocol/3.17.6-next.9"
 
 var (
 	repodir   = flag.String("d", "", "directory containing clone of "+vscodeRepo)

gopls/internal/protocol/generate/output.go

@@ -86,7 +86,7 @@ func genDecl(model *Model, method string, param, result *Type, dir string) {
 	}
 }
 
-func genCase(model *Model, method string, param, result *Type, dir string) {
+func genCase(_ *Model, method string, param, result *Type, dir string) {
 	out := new(bytes.Buffer)
 	fmt.Fprintf(out, "\tcase %q:\n", method)
 	var p string
@@ -128,7 +128,7 @@ func genCase(model *Model, method string, param, result *Type, dir string) {
 	}
 }
 
-func genFunc(model *Model, method string, param, result *Type, dir string, isnotify bool) {
+func genFunc(_ *Model, method string, param, result *Type, dir string, isnotify bool) {
 	out := new(bytes.Buffer)
 	var p, r string
 	var goResult string

gopls/internal/protocol/generate/tables.go

@@ -256,6 +256,8 @@ var methodNames = map[string]string{
 	"workspace/inlineValue/refresh":          "InlineValueRefresh",
 	"workspace/semanticTokens/refresh":       "SemanticTokensRefresh",
 	"workspace/symbol":                       "Symbol",
+	"workspace/textDocumentContent":          "TextDocumentContent",
+	"workspace/textDocumentContent/refresh":  "TextDocumentContentRefresh",
 	"workspace/willCreateFiles":              "WillCreateFiles",
 	"workspace/willDeleteFiles":              "WillDeleteFiles",
 	"workspace/willRenameFiles":              "WillRenameFiles",