Rename private `printList_` to public `printAll` across all overloaded `IO.print` methods in both Wren source and embedded C string. Update `IO.read` to require explicit `()` call syntax in test and documentation. Revise IO documentation to clarify `print`, `printAll`, `write`, and `read` semantics with updated examples.
The Wren scripts in this directory get converted to C string literals and then inserted into their respective .c files so that the interpreter can load them directly without having to do any file IO.
The script that does this copying is script/generate_builtins.py.
You can invoke using make builtin.