add 2 ices

rust-lang/rust#98932
rust-lang/rust#98897

Author: matthiaskrgr

ices/98897.rs

@@ -0,0 +1,3 @@
+pub fn main() {
+    (|_, ()| ())([return, ()]);
+}

ices/98932.rs

@@ -0,0 +1,13 @@
+pub struct EntriesBuffer(Box<[[u8; HashesEntry::LEN]; 5]>);
+
+impl EntriesBuffer {
+    pub fn iter_child_buffers(&mut self) -> impl Iterator<Item = &mut [u8; HashesEntry::LEN]> {
+        self.0.iter_mut()
+    }
+}
+
+pub struct HashesEntry<'a>(&'a [u8]);
+
+impl HashesEntry<'_> {
+    pub const LEN: usize = 1;
+}