`@type {const}` produces namespace in .d.ts instead of normal object type

🔎 Search Terms

@type {const}
const
definition types

🕗 Version & Regression Information

• This is a crash in all versions

⏯ Playground Link

https://www.typescriptlang.org/play?target=99&jsx=0&ts=5.3.2&filetype=ts#code/KYDwDg9gTgLgBAYwgOwM7wLYE8DCL1wC8cA9AFRlwACMWYwcA3kmjAL5xklMCwAUAEgAZhAgAuOAHIARgEMokgDT9hAV1UTGK4aIkz5klW35sA3PyA

💻 Code

// Typescript file
export const myConst = /** @type {const} */ {
	foo: 'bar',
	fuu: {
		foo: 'bar'
	}
};

// Javascript file
export const myConst = /** @type {const} */ {
	foo: 'bar',
	fuu: {
		foo: 'bar'
	}
};

🙁 Actual behavior

// .D.TS from Typescript file
export declare const myConst: {
    foo: string;
    fuu: {
        foo: string;
    };
};

// .D.TS from Javascript file
export namespace myConst {
    let foo: string;
    namespace fuu {
        let foo_1: string;
        export { foo_1 as foo };
    }
}

🙂 Expected behavior

Same output in both cases. Typescript file output is the correct one.

Additional information about the issue

No response