tools/goplssetting: read enum key and enum value status

VSCode-Go release tool can read gopls apijson's enum keys and
enum values' status field (experimental, debug, advanced).

The status will be added in the front of markdone description.

x/tools CL 652356

Change-Id: I00333a9b63813369f1989e25131b8ce82827a022
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/652357
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Hongxiang Jiang <hxjiang@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
kokoro-CI: kokoro <noreply+kokoro@google.com>

extension/tools/goplssetting/goplssetting.go

diff --git a/extension/tools/goplssetting/goplssetting.go b/extension/tools/goplssetting/goplssetting.go
index a1aa7ff..7f725b3 100644
--- a/extension/tools/goplssetting/goplssetting.go
+++ b/extension/tools/goplssetting/goplssetting.go
@@ -111,9 +111,20 @@
 
 	opts := []*Option{}
 	for _, v := range options {
-		if name := statusName(v.Option); name != "" {
+		if name := statusName(v.Option.Status); name != "" {
 			v.Option.Doc = name + " " + v.Option.Doc
 		}
+		// Enum keys or values can be marked with status individually.
+		for i, key := range v.EnumKeys.Keys {
+			if name := statusName(key.Status); name != "" {
+				v.EnumKeys.Keys[i].Doc = name + " " + key.Doc
+			}
+		}
+		for i, value := range v.EnumValues {
+			if name := statusName(value.Status); name != "" {
+				v.EnumValues[i].Doc = name + " " + value.Doc
+			}
+		}
 		opts = append(opts, v.Option)
 	}
 	return opts, nil
@@ -129,8 +140,8 @@
 	return 1000
 }
 
-func statusName(opt *Option) string {
-	switch toStatus(opt.Status) {
+func statusName(s string) string {
+	switch toStatus(s) {
 	case Experimental:
 		return "(Experimental)"
 	case Advanced:
@@ -453,11 +464,13 @@
 	Name    string // in JSON syntax (quoted)
 	Doc     string
 	Default string
+	Status  string // = "" | "advanced" | "experimental" | "deprecated"
 }
 
 type EnumValue struct {
-	Value string // in JSON syntax (quoted)
-	Doc   string // doc comment; always starts with `Value`
+	Value  string // in JSON syntax (quoted)
+	Doc    string // doc comment; always starts with `Value`
+	Status string // = "" | "advanced" | "experimental" | "deprecated"
 }
 
 type Lens struct {
@@ -466,6 +479,7 @@
 	Title    string
 	Doc      string
 	Default  bool
+	Status   string // = "" | "advanced" | "experimental" | "deprecated"
 }
 
 type Analyzer struct {
@@ -479,4 +493,5 @@
 	Name    string
 	Doc     string
 	Default bool
+	Status  string // = "" | "advanced" | "experimental" | "deprecated"
 }