stdlib: Add Option and Result types

stdlib/std.cl

@@ -3,7 +3,9 @@
 pub mod preamble {
     pub use super::{
         num::*,
+        option::Option,
         range::{RangeExc, RangeInc},
+        result::Result,
         str::str,
     };
 }

stdlib/std/option.cl

@@ -1,4 +1,5 @@
 //! The optional type, representing the presence or absence of a thing.
+use super::preamble::*;
 
 pub enum Option<T> {
     Some(T),

stdlib/std/result.cl

@@ -1,4 +1,5 @@
 //! The Result type, indicating a fallible operation.
+use super::preamble::*;
 
 pub enum Result<T, E> {
     Ok(T),