Feature Request: ability to ignore helper functions added by transpilers

[goatslacker]

6to5 adds quite a few helper functions to the top of the file, it would be cool to have these ignored by istanbul.

[dgieselaar]

FYI, this is configurable in babel:
babel/babel#777

Here's what it looks like for karma:

babelPreprocessor: {
            options: {
                auxiliaryComment: 'istanbul ignore next'
            }
        }

[ghost]

@goatslacker is the auxiliaryComment option sufficient for your needs?

[goatslacker]

I've been actually transpiling it using the babel external files and then requiring a test helper that auto includes them