Make assoc function example more extreme

examples/associated_functions.reid

@@ -1,3 +1,7 @@
+import std::print;
+import std::from_str;
+import std::String;
+
 struct Otus {
     field: u32,
 }
@@ -8,7 +12,17 @@ impl Otus {
     }
 }
 
+impl i32 {
+    fn test(&self) -> u32 {
+        43
+    }
+}
+
 fn main() -> u32 {
     let otus = Otus { field: 17 };
+    let num = 54;
+    print(from_str("otus: ") + Otus::test(&otus) as u64);
+    print(from_str("i32: ") + i32::test(&num) as u64);
+
     return Otus::test(&otus);
 }