Integrating sequence diagrams with the debugger for actionScript

Lately I was dealing with a massive refactoring effort in a large scale application. I desperately needed a way to understand the code flow before and after the refactor.

Using the debugger is quite exhausting, and besides, looking at stack trace at a certain point does not reveal the full path of nested calls the runtime went through.

The ideal visualization would be a sequence diagram describing code execution.
Looking for a solution, I discovered several tools that provide this exact functionality.
Enterprise Architect and Architexa are two of them.

But alas, none of those supports actionscript.

I corresponded with Architexa support, and turns out that they do have ActionScript support prototypes but they are not making it available until they have enough demand for it.

Does anyone know of an existing solution for actionscript?