[FR] inheritAttrs: false when using v-bind="$attrs"

[privatenumber]

Components that inherit $attrs into a nested element in the component typically wouldn't want to get duplicated attributes applied to the top-level element. Might be a good linting rule to warn to apply inheritAttrs: false when it detects v-bind="$attrs" being used.

[michalsnik]

I'm not sure about this rule. It might lead to false-positives, the inheritAttrs might not be explicitly set on the component if it uses a mixin. And having it reporting in one scenario and not in the other seems not very consistent and might actually be misleading in my opinion. WDYT @chrisvfritz ?

[chrisvfritz]

As long as we can avoid false positives (e.g. by just turning the rule off if we detect a mixin or Object.assign/spread on the component object), I think it could be useful. From what I've seen, it's very rare for inheritAttrs: false to come from an external source, so this would still catch 99% of cases.