Shorten error spans for missing key errors reported on object literals

🔍 Search Terms

object literal, error span, squigglies, highlight, decoration, editor, range

✅ Viability Checklist

• 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, new syntax sugar for JS, etc.)
• This isn't a request to add a new utility type: https://github.com/microsoft/TypeScript/wiki/No-New-Utility-Types
• This feature would agree with the rest of our Design Goals: https://github.com/Microsoft/TypeScript/wiki/TypeScript-Design-Goals

⭐ Suggestion

When defining an object literal with a missing key, e.g. as a function input, highlight only the first line of the object literal as opposed to the entire node.

📃 Motivating Example

Current behavior (one parameter with missing key):

Suggested behavior (one parameter with missing key):

Current behavior (two parameters with missing keys):

Suggested behavior(two parameters with missing keys):

Here's a TS playground link with the original source:

https://tsplay.dev/N9a3qN

💻 Use Cases

This would make errors clearer and less jarring when defining large objects as function inputs.

Beginne mit dem verlinkten TS Playground-Beispiel und reproduziere die Diagnosen für fehlende Schlüssel bei einem und zwei Objektliteral-Parametern. Verfolge, wo der Diagnosebereich für diese Fehler ausgewählt wird, und überprüfe anschließend, dass jede Hervorhebung an der ersten Zeile des Objektliterals endet, statt den gesamten Knoten abzudecken.