Add a new analyze command to shelldb to run the dart analyzer
Add a new analyze command to shelldb to run the dart analyzer

This just makes it easier to run with the correct flags.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/982093003

collinjackson/mojo,jianglu/mojo,chinmaygarde/mojo,collinjackson/mojo,chinmaygarde/mojo,collinjackson/mojo,chinmaygarde/mojo,jianglu/mojo,chinmaygarde/mojo,collinjackson/mojo,afandria/mojo,jianglu/mojo,collinjackson/mojo,chinmaygarde/mojo,afandria/mojo,collinjackson/mojo,chinmaygarde/mojo,afandria/mojo,collinjackson/mojo,chinmaygarde/mojo,afandria/mojo,afandria/mojo,afandria/mojo,chinmaygarde/mojo,jianglu/mojo,jianglu/mojo,jianglu/mojo,collinjackson/mojo,chinmaygarde/mojo,collinjackson/mojo,afandria/mojo,afandria/mojo,jianglu/mojo,jianglu/mojo