jsdoc @type is not working properly for some class method variant

TypeScript Version: 4.0.0-beta and 3.9.2

Search Terms: jsdoc, type, typedef, class method, typechecking

Code

// @strict: false

/**
 * @typedef {(newNumber: number) => void} SetNumberFunc
 */

class A {
    /**
     * @type {number}
     */
    a = 0;

    constructor() {
        this.a = 0;
    }

    /**
     * @type {SetNumberFunc}
     */
    setAVariant1(newNumber) {
        this.a = newNumber;
    }
}

Expected behavior: The newNumber param should have a number type when hovering on the setAVariant1 method.

Actual behavior: The newNumber param have any type when hovering on the setAVariant1 method.

Playground Link: Playground Link

Related Issues: -

Start with the linked TypeScript Playground reproduction and inspect how the JSDoc @type annotation is handled for the class method setAVariant1. Compare the hover type of newNumber with the expected number type, and verify that the reproduction reports number rather than any when the fix is complete.