UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.39 Safari/537.36

Steps to reproduce the problem:
1. Take a performance trace, ideally from a site that ships minified resources like Facebook.com
2. Download the trace locally and inspect it
3. Note that 'FunctionCall' doesn't include the columnNumber.

What is the expected behavior?
I'd expect most categories to include columnNumber.

To give context here, it's pretty simple to write a tool to take production traces sent it from users and 'de-minify' them and we're doing just that. It would be nice to also cover FunctionCall.

What went wrong?
N/A

Did this work before? N/A 

Chrome version: 64.0.3282.39  Channel: n/a
OS Version: OS X 10.12.6
Flash Version: