importer: Move import_file up here
importer: Move import_file up here

We're going to use it to refactor load_module_init

mtwebster/cjs,mtwebster/cjs,endlessm/gjs,endlessm/gjs,endlessm/gjs,mtwebster/cjs,pixunil/cjs,endlessm/gjs,pixunil/cjs,mtwebster/cjs,pixunil/cjs,pixunil/cjs,mtwebster/cjs,endlessm/gjs,pixunil/cjs