Bug Report

Current behavior

No core-js polyfills in the final bundle.

Since babel/babel#10862 the core-js polyfill paths always have .js extension.
In shouldReplace function https://github.com/babel/babel/blob/41085248560b1403b8d0f99f108491e679531c6c/packages/babel-preset-env/src/polyfills/corejs3/entry-plugin.js#L52-L64
the module path is compared wi

https://github.com/jaretburkett/electron-icon-maker

Expected Behavior

Components render without warnings.

Actual Behavior

The following seen in the browser console:

Warning: Failed prop type: Invalid prop `children` of type `object` supplied to `Menu`, expected `function`.

URL, screen shot, or Codepen exhibiting the issue

![image](https://user-images.githubusercontent.com/12632548/101269858-16366e80-3741-11eb

It would be nice to have a babel macro that automatically runs the babel plugin to remove the runtime. That way, this project would work out of the box with "zero" config tools like create-react-app.

I'm thinking it could be something like:

import {html} from 'htm/preact/macro'

This is similar conceptually to CSS-IN-JS libraries providing a macro for their tools. See https://e

See:
https://david-dm.org/angular-fullstack/angular-fullstack-deps/5.0.0
https://david-dm.org/angular-fullstack/angular-fullstack-deps/5.0.0?type=dev

Validate the entire tree of options passed to preset.

Maybe, each plugin can export a list of options that only babili preset understands and we can validate them only when using the preset and not when using the plugin separately.

module.exports = function plugin() {};
module.exports.options = PropTypes.object({
  n: PropTypes.number
});

Or, this can be implemented in bab