circleci config validate does not check that jobs listed in a workflow are defined

[federicobond]

When a job is listed in a workflow but missing from the jobs section, the config validator will report the config as valid but will fail immediately when pushed to CircleCI:

* Cannot find a job named `build` to run in the `jobs:` section of your configuration file.

The validator should ensure that all jobs listed in workflows are actually defined.

[FelicianoTech]

@marcomorain Thoughts here?

[marcomorain]

We are working on a new CLI tool that will do full config validation server-side. You can follow progress at https://github.com/CircleCI-Public/circleci-cli. I'll move this issue there.

[marcomorain]

CircleCI-Public/circleci-cli#11

[marcomorain]

@FelicianoTech you can close this issue 👌

[federicobond]

Thanks!