single line comment to doc comment

[tjx666]

scene 1

• not follow with function or function variable
• single line comment only one line

before:

interface Props {
    // some comment
    a: number;
}

after:

interface Props {
    /** some comment */
    a: number;
}

scene 2

• not follow with function or function variable
• single line comment has multiple lines

interface Props {
    // comment line 1
    // comment line 2
    a: number;
}

after:

interface Props {
    /**
     * comment line 1
     * comment line 2
     */
    a: number;
}

scene 3

• follow with function

// add two number
function add(a, b) {

}

after:

/**
 * add two number
 */
function add(a, b) {

}

scene 4

• function variable

// add two number
const add = (a, b) => {

}

after:

/**
 * add two number
 */
const add = (a, b) => {

}