"Attributes shorthand" in v-for cycles

What problem does this feature solve?

Vue is famous for its highly readable syntax and this can make it even more readable.

What does the proposed API look like?

Instead of writing duplicities in v-for cycles like this:

<elm
v-for="({ value, class, 'data-image' }, key) in elmprops"
:value="value"
:class="class"
:data-image="data-image"
:key="key"
/>

Would by nice to have "attributes shorthand" like this:

<elm
v-for="({ value, class, 'data-image' }, key) in elmprops"
:value
:class
:data-image
:key
/>

Like the object properties shorthand works in ES:

let routes = []
let router = { routes }

instead of unnecessary duplicities in older syntax:

let routes = []
let router = { routes: routes }

[sqal]

#2877