build(rust): vendor rnix parser crate

third_party/crates/hashbrown-0.14.5/tests/raw.rs

@@ -0,0 +1,11 @@
+#![cfg(feature = "raw")]
+
+use hashbrown::raw::RawTable;
+use std::mem;
+
+#[test]
+fn test_allocation_info() {
+    assert_eq!(RawTable::<()>::new().allocation_info().1.size(), 0);
+    assert_eq!(RawTable::<u32>::new().allocation_info().1.size(), 0);
+    assert!(RawTable::<u32>::with_capacity(1).allocation_info().1.size() > mem::size_of::<u32>());
+}