VSCode Syntax highlighting broken when using TypeScript multiline generics in ES6 object function shorthand syntax

Does this issue occur when all extensions are disabled?: Yes

VS Code Version: 1.62.3
OS Version: macOS 11.6.1

Steps to Reproduce:

Create a typescript file with the following code:


const obj = {
fn<
    K extends string
>(_: K) {
    const a = 'a';

    function _f() {
        const b = 'b';
        return b;
    }

    return a;
},
};

const obj2 = { fn(_: K) { const a = 'a';

    function _f() {
        const b = 'b';
        return b;
    }

    return a;
},

};


2. Notice how the syntax highlighting is broken in the first object declaration:
<img width="566" alt="image" src="https://user-images.githubusercontent.com/36966635/144325213-02cf52d0-669d-45a0-9bf8-d4f4dad18bba.png">

microsoft / TypeScript-TmLanguage

VSCode Syntax highlighting broken when using TypeScript multiline generics in ES6 object function shorthand syntax #894