Summary: symbolizer for cgo to help with debuggin.

Test Plan: tested and gives some sembelance of a stack trace.

Reviewers: zasgar, nserrino, #engineering, michelle

Reviewed By: zasgar, #engineering, michelle

Differential Revision: https://phab.corp.pixielabs.ai/D6348

GitOrigin-RevId: 3437b51bfd9976a214c756d0156bc4713f5ed4d5