chore: update variable names in stdlib tests to be more correct (#6419)

noir_stdlib/src/field/mod.nr

@@ -285,39 +285,39 @@ mod tests {
     // docs:start:to_be_bytes_example
     fn test_to_be_bytes() {
         let field = 2;
-        let bits: [u8; 8] = field.to_be_bytes();
-        assert_eq(bits, [0, 0, 0, 0, 0, 0, 0, 2]);
-        assert_eq(Field::from_be_bytes::<8>(bits), field);
+        let bytes: [u8; 8] = field.to_be_bytes();
+        assert_eq(bytes, [0, 0, 0, 0, 0, 0, 0, 2]);
+        assert_eq(Field::from_be_bytes::<8>(bytes), field);
     }
     // docs:end:to_be_bytes_example
 
     #[test]
     // docs:start:to_le_bytes_example
     fn test_to_le_bytes() {
         let field = 2;
-        let bits: [u8; 8] = field.to_le_bytes();
-        assert_eq(bits, [2, 0, 0, 0, 0, 0, 0, 0]);
-        assert_eq(Field::from_le_bytes::<8>(bits), field);
+        let bytes: [u8; 8] = field.to_le_bytes();
+        assert_eq(bytes, [2, 0, 0, 0, 0, 0, 0, 0]);
+        assert_eq(Field::from_le_bytes::<8>(bytes), field);
     }
     // docs:end:to_le_bytes_example
 
     #[test]
     // docs:start:to_be_radix_example
     fn test_to_be_radix() {
         let field = 2;
-        let bits: [u8; 8] = field.to_be_radix(256);
-        assert_eq(bits, [0, 0, 0, 0, 0, 0, 0, 2]);
-        assert_eq(Field::from_be_bytes::<8>(bits), field);
+        let bytes: [u8; 8] = field.to_be_radix(256);
+        assert_eq(bytes, [0, 0, 0, 0, 0, 0, 0, 2]);
+        assert_eq(Field::from_be_bytes::<8>(bytes), field);
     }
     // docs:end:to_be_radix_example
 
     #[test]
     // docs:start:to_le_radix_example
     fn test_to_le_radix() {
         let field = 2;
-        let bits: [u8; 8] = field.to_le_radix(256);
-        assert_eq(bits, [2, 0, 0, 0, 0, 0, 0, 0]);
-        assert_eq(Field::from_le_bytes::<8>(bits), field);
+        let bytes: [u8; 8] = field.to_le_radix(256);
+        assert_eq(bytes, [2, 0, 0, 0, 0, 0, 0, 0]);
+        assert_eq(Field::from_le_bytes::<8>(bytes), field);
     }
     // docs:end:to_le_radix_example