feat(hir): add u8_not unary intrinsic

Author: andogq

src/main.rs

@@ -527,6 +527,19 @@ mod test {
             );
         }
 
+        #[test]
+        fn unary_intrinsic() {
+            assert_eq!(
+                run(r#"@intrinsic
+                    extern fn u8_not(n: u8) -> u8;
+
+                    fn main() -> u8 {
+                        u8_not(183)
+                    }"#),
+                72
+            );
+        }
+
         #[test]
         fn add_overflow() {
             assert_eq!(

src/passes/hir_gen/annotations/intrinsic.rs

@@ -213,4 +213,5 @@ macro_rules! intrinsics {
 intrinsics! {
     u8_add_wrapping(lhs: u8, rhs: u8) -> u8 { BinaryOperation(Plus) };
     u8_add_overflow(lhs: u8, rhs: u8) -> (u8, bool) { BinaryOperation(PlusWithOverflow) };
+    u8_not(n: u8) -> u8 { UnaryOperation(Not) };
 }