add 5 ices

rust-lang/rust#101076
rust-lang/rust#101036
rust-lang/rust#101020
rust-lang/rust#101001
rust-lang/rust#100878

ices/100878.rs

@@ -0,0 +1,5 @@
+#![crate_type = "lib"]
+pub fn get_u16_from_unaligned_manual(data: [u8; 1]) -> u8 {
+    data[0] << 8
+}
+

ices/101001.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+rustc --crate-type lib -Zmeta-stats  - <<'EOF'
+
+pub fn a() {}
+
+EOF
+

ices/101020.rs

@@ -0,0 +1,33 @@
+#![feature(generic_associated_types)]
+pub trait LendingIterator {
+    type Item<'a>
+    where
+        Self: 'a;
+
+    fn consume<F>(self, _f: F)
+    where
+        Self: Sized,
+        for<'a> Self::Item<'a>: FuncInput<'a, Self::Item<'a>>,
+    {
+    }
+}
+
+impl<I: LendingIterator + ?Sized> LendingIterator for &mut I {
+    type Item<'a> = I::Item<'a> where Self: 'a;
+}
+struct EmptyIter;
+impl LendingIterator for EmptyIter {
+    type Item<'a> = &'a mut () where Self:'a;
+}
+pub trait FuncInput<'a, F>
+where
+    F: Foo<Self>,
+    Self: Sized,
+{
+}
+impl<'a, T, F: 'a> FuncInput<'a, F> for T where F: Foo<T> {}
+trait Foo<T> {}
+
+fn map_test() {
+    (&mut EmptyIter).consume(()); 
+}

ices/101036.rs

@@ -0,0 +1,13 @@
+#![feature(generic_const_exprs)]
+
+const fn t<const N: usize>() -> u8 {
+    N as u8
+}
+
+#[repr(u8)]
+enum T<const N: u8 = { T::<0>::A as u8 + T::<0>::B as u8 }>
+where
+    [(); N as usize]:
+{
+    A = t::<N>() as u8, B
+}

ices/101076.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+cat > out.rs <<'EOF'
+
+const _: () = {
+    #[macro_export]
+    macro_rules! first_macro {
+        () => {}
+    }
+    mod foo {
+        #[macro_export]
+        macro_rules! second_macro {
+            () => {}
+        }
+    }
+};
+
+EOF
+
+rustdoc out.rs