Show function return type inlay hints even for JS functions that have explicit type annotations

Suggestion

🔍 Search Terms

• inlay hints
• return type
• function like
• JavaScript

⭐ Suggestion

Currently the javascript.inlayHints.functionLikeReturnTypes.enabled setting in VS Code adds inlay hints to JS functions that do not have an explicit @return annotation:

// Shown here
function foo() /* : number */ { 
    return 1;
}

// But not here here
/** @return {number} */
function foo()  { 
    return 1;
}

This feels inconsistent, since I now have to look in different locations for the type information

I propose adding a new option that always enables these return types in JS files, even if there is an @return type annotation.

In the example above, this would result in the inlay hints showing on both functions:

function foo() /* : number */ { 
    return 1;
}

/** @return {number} */
function foo()  /* : number */ { 
    return 1;
}

This lets me read the code more like standard TypeScript

Start by tracing the existing javascript.inlayHints.functionLikeReturnTypes.enabled setting and how return types are suppressed when an @return annotation is present. Define the new option's interaction with that setting, then verify that both annotated and unannotated JavaScript functions show return-type inlay hints when enabled.