add 5 ices

rust-lang/rust#100771
rust-lang/rust#100772
rust-lang/rust#100778
rust-lang/rust#100783
rust-lang/rust#100818

ices/100771.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+rustc  -Zextra-const-ub-checks - <<'EOF'
+
+#[derive(PartialEq, Eq, Copy, Clone)]
+#[repr(packed)]
+struct Foo {
+    field: (i64, u32, u32, u32),
+}
+
+const FOO: Foo = Foo {
+    field: (5, 6, 7, 8),
+};
+
+fn main() {
+    match FOO {
+        Foo { field: (5, 6, 7, 8) } => {},
+        FOO => unreachable!(), //~ WARNING unreachable pattern
+        _ => unreachable!(),
+    }
+}
+
+EOF
+

ices/100772.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+rustc -Clto -Zsanitizer=cfi - <<'EOF'
+
+#![feature(allocator_api)]
+
+fn main() {
+    Box::new_in(&[0, 1], &std::alloc::Global);
+}
+
+EOF
+

ices/100778.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+rustc -Clto -Zsanitizer=cfi - <<'EOF'
+
+#![feature(adt_const_params, generic_const_exprs)]
+#![allow(incomplete_features)]
+
+pub type Matrix = [usize; 1];
+const EMPTY_MATRIX: Matrix = [0; 1];
+
+pub struct Walk<const REMAINING: Matrix> { }
+
+impl Walk<EMPTY_MATRIX> {
+	pub const fn new() -> Self {
+		Self {}
+	}
+}
+
+fn main() {
+    let _ = Walk::new();
+}
+
+EOF
+

ices/100783.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+rustc -Cdebuginfo=2 -Zsanitizer=cfi -Clto - <<'EOF'
+
+// run-pass
+trait Stream { type Item; }
+impl<'a> Stream for &'a str { type Item = u8; }
+fn f<'s>(s: &'s str) -> (&'s str, <&'s str as Stream>::Item) {
+    (s, 42)
+}
+
+fn main() {
+    let fx = f as for<'t> fn(&'t str) -> (&'t str, <&'t str as Stream>::Item);
+    assert_eq!(fx("hi"), ("hi", 42));
+}
+
+
+EOF
+

ices/100818.rs

@@ -0,0 +1,9 @@
+#![feature(type_alias_impl_trait)]
+use std::future::Future;
+
+fn main() {
+    type SomeFuture<'t> = impl 't + Future<Output = ()>;
+    type SomeClosure = impl for<'t> FnOnce(&'t str) -> SomeFuture<'t>;
+    fn coerce_closure(f: SomeClosure) {}
+    coerce_closure(|x: &str| async move {});
+}