Ability to view and debug expanded source code from macros

[drujensen]

The ability to view and debug the expanded source code after macros have been applied.

[nobodywasishere]

Hypothesizing here, but maybe it could add a {% debug %} to the end of the macro source code before compiling and pull the result out?

[nobodywasishere]

I have a proof of concept working. It basically calls crystal tool expand ... on the file/line and adds a hover with the result. Currently it reruns every time - don't know if there's a way to make that more efficient. This may also just work better as a right click utility versus a constant hover.

Need to add more configuration and test in larger projects / across different files.