Here are implemented the language's builtin variables. Each file defines it's values and exposes them through an array of `StaticMapSlot`s. These values can then be accessed from within the language by wrapping these arrays in static map objects (check src/o_staticmap.c to know more). The array of `StaticMapSlot`s defined by `basic.c` is the root of the builtin object tree. All other arrays are referred by it.