**[TS and JS Grammar Extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode.typescript-javascript-grammar) version:** 0.0.18 / latest **Code** Visible in `tests/cases/quickInfoOnThis4.ts`. Here is the relevant part of the file: ```ts verify.quickInfos({ 1: "this: ContextualInterface", 2: "(parameter) this: void" }); ``` Note that the issue does not occur if you remove the outer function call.