Show parameter quickinfo at the position of arguments

Search Terms

quickinfo,parameter

Suggestion

If you call an function with many many arguments (and maybe with same type).
It's easy to lost your mind: Where I am? What i am doing? Which parameter I'm passing?
It's helpful if show the parameter info when hover into one arguments.

Examples

declare function foo(
    p1: string,
    p2: string,
    p3: string,
    p4: string,
    p5: string
): void;

declare const a: string[]

foo(
    a[0],
    a[1], // ???
    a[2],
    a[3],
    a[4]
)

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

El issue no nombra archivos, pruebas ni puntos de entrada. Empieza rastreando el comportamiento de TypeScript language-service quickinfo y signature-help en los argumentos de llamada; se considera terminado cuando al pasar el cursor sobre un argumento se identifica su parámetro correspondiente sin cambiar la salida en tiempo de ejecución.