* add some more tests for let
* support static strings
* add function calling
* add prints for windows debgu
* one test only
* try swapping r14 and r15 in windows
* swap back
* disable defun for now
* fix massive bug
* fix formatting
* move things to the common library and remove next_dir
* fix for windows
* one last windows fix
* last fix for real this time
* debug listener test
* fix listener threading bug