FR: Support Google Cloud Function (Node8 and 6) development in IntelliJ

(copied from request sent to internal tracker)

There's currently no support for Cloud Function development under no IDE I believe.

What you would like to accomplish:

Have code completion, import management, local testing/debugging, direct deployment feature if local testing is not available (so we don't have to commit every time we want to test)

The first two features might not be very difficult to have, and would greatly improve the developer experience.

The last one is heavier, but really needed to be efficient at developing.
This could embedded a NodeJS emulator, and would need at least a seamless connectivity with other GCP resources (Emulator to BigQuery for instance).
The current emulator is currently too restricted in feature and only supports Node6. (Who want to start a project on a future deprecated platform?)