Experimental modules warning does not show when using dynamic import
As reported by @coreyfarrell
here -
Interesting note, the following code executed by CJS does not produce any warning or error in node.js 13.2.0:
import('./nyc.config.mjs')
.then(console.log)
.catch(e => console.error(e.message));
When using dynamic import the experimental modules implementation is effectively used "lazily". Even when loaded at this point the warning should still be displayed.
Currently the warning is implemented at https://github.com/nodejs/node/blob/master/lib/internal/process/esm_loader.js#L45.
When calling the first dynamic import through https://github.com/nodejs/node/blob/master/lib/internal/process/esm_loader.js#L26 we should also be able to ensure the warning is provided.