facebook/hhvm — pull request #4305 by rrh (2014-11-21 16:57:52+00:00)
Title: Refactor Profiler::Frame so subclasses of Profiler can have their own Fr...

...ame.

Change allocation/deallocation of Profiler::Frame to use new/delete.
Add a virtual destructor to Profiler::Frame.
Fiddle with ASCII art.