feat: support redirect to another option directly without value (#16038)

src/main/core-options.evaluate.js

@@ -17,7 +17,7 @@ import {
  * @property {OptionRangeInfo} [range] - for type int
  * @property {string} description
  * @property {string} [deprecated] - deprecated since version
- * @property {OptionRedirectInfo} [redirect] - redirect deprecated option
+ * @property {OptionRedirectInfo | string} [redirect] - redirect deprecated option
  * @property {(value: any) => boolean} [exception]
  * @property {OptionChoiceInfo[]} [choices] - for type choice
  * @property {string} [cliName]

src/main/normalize-options.js

@@ -176,10 +176,13 @@ function optionInfoToSchema(optionInfo, { isCLI, optionInfos, FlagSchema }) {
       !value
         ? undefined
         : {
-            to: {
-              key: optionInfo.redirect.option,
-              value: optionInfo.redirect.value,
-            },
+            to:
+              typeof optionInfo.redirect === "string"
+                ? optionInfo.redirect
+                : {
+                    key: optionInfo.redirect.option,
+                    value: optionInfo.redirect.value,
+                  },
           };
   }
   /* c8 ignore stop */