Auto merge of #77302 - RalfJung:rollup-n8gg3v6, r=RalfJung

Rollup of 7 pull requests

Successful merges:

 - #76454 (UI to unit test for those using Cell/RefCell/UnsafeCell)
 - #76474 (Add option to pass a custom codegen backend from a driver)
 - #76711 (diag: improve closure/generic parameter mismatch)
 - #77170 (Remove `#[rustc_allow_const_fn_ptr]` and add `#![feature(const_fn_fn_ptr_basics)]`)
 - #77194 (Add doc alias for iterator fold)
 - #77288 (fix building libstd for Miri on macOS)
 - #77295 (Update unstable-book: Fix ABNF in inline assembly docs)

Failed merges:

r? `@ghost`

4 files changed, 0 insertions, 151 deletions

diff --git a/src/test/ui/array-slice-vec/arr_cycle.rs b/src/test/ui/array-slice-vec/arr_cycle.rs
deleted file mode 100644
index c262b5a1ff0..00000000000
--- a/src/test/ui/array-slice-vec/arr_cycle.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-// run-pass
-
-use std::cell::Cell;
-
-#[derive(Debug)]
-struct B<'a> {
-    a: [Cell<Option<&'a B<'a>>>; 2]
-}
-
-impl<'a> B<'a> {
-    fn new() -> B<'a> {
-        B { a: [Cell::new(None), Cell::new(None)] }
-    }
-}
-
-fn f() {
-    let (b1, b2, b3);
-    b1 = B::new();
-    b2 = B::new();
-    b3 = B::new();
-    b1.a[0].set(Some(&b2));
-    b1.a[1].set(Some(&b3));
-    b2.a[0].set(Some(&b2));
-    b2.a[1].set(Some(&b3));
-    b3.a[0].set(Some(&b1));
-    b3.a[1].set(Some(&b2));
-}
-
-fn main() {
-    f();
-}
diff --git a/src/test/ui/array-slice-vec/vec-slice-drop.rs b/src/test/ui/array-slice-vec/vec-slice-drop.rs
deleted file mode 100644
index 3a9ea86af34..00000000000
--- a/src/test/ui/array-slice-vec/vec-slice-drop.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-// run-pass
-
-#![allow(non_camel_case_types)]
-
-use std::cell::Cell;
-
-// Make sure that destructors get run on slice literals
-struct foo<'a> {
-    x: &'a Cell<isize>,
-}
-
-impl<'a> Drop for foo<'a> {
-    fn drop(&mut self) {
-        self.x.set(self.x.get() + 1);
-    }
-}
-
-fn foo(x: &Cell<isize>) -> foo {
-    foo {
-        x: x
-    }
-}
-
-pub fn main() {
-    let x = &Cell::new(0);
-    {
-        let l = &[foo(x)];
-        assert_eq!(l[0].x.get(), 0);
-    }
-    assert_eq!(x.get(), 1);
-}
diff --git a/src/test/ui/array-slice-vec/vec_cycle.rs b/src/test/ui/array-slice-vec/vec_cycle.rs
deleted file mode 100644
index 82bce437282..00000000000
--- a/src/test/ui/array-slice-vec/vec_cycle.rs
+++ /dev/null
@@ -1,39 +0,0 @@
-// run-pass
-
-use std::cell::Cell;
-
-#[derive(Debug)]
-struct C<'a> {
-    v: Vec<Cell<Option<&'a C<'a>>>>,
-}
-
-impl<'a> C<'a> {
-    fn new() -> C<'a> {
-        C { v: Vec::new() }
-    }
-}
-
-fn f() {
-    let (mut c1, mut c2, mut c3);
-    c1 = C::new();
-    c2 = C::new();
-    c3 = C::new();
-
-    c1.v.push(Cell::new(None));
-    c1.v.push(Cell::new(None));
-    c2.v.push(Cell::new(None));
-    c2.v.push(Cell::new(None));
-    c3.v.push(Cell::new(None));
-    c3.v.push(Cell::new(None));
-
-    c1.v[0].set(Some(&c2));
-    c1.v[1].set(Some(&c3));
-    c2.v[0].set(Some(&c2));
-    c2.v[1].set(Some(&c3));
-    c3.v[0].set(Some(&c1));
-    c3.v[1].set(Some(&c2));
-}
-
-fn main() {
-    f();
-}
diff --git a/src/test/ui/array-slice-vec/vec_cycle_wrapped.rs b/src/test/ui/array-slice-vec/vec_cycle_wrapped.rs
deleted file mode 100644
index 1a3606d5e8d..00000000000
--- a/src/test/ui/array-slice-vec/vec_cycle_wrapped.rs
+++ /dev/null
@@ -1,50 +0,0 @@
-// run-pass
-
-use std::cell::Cell;
-
-#[derive(Debug)]
-struct Refs<'a> {
-    v: Vec<Cell<Option<&'a C<'a>>>>,
-}
-
-#[derive(Debug)]
-struct C<'a> {
-    refs: Refs<'a>,
-}
-
-impl<'a> Refs<'a> {
-    fn new() -> Refs<'a> {
-        Refs { v: Vec::new() }
-    }
-}
-
-impl<'a> C<'a> {
-    fn new() -> C<'a> {
-        C { refs: Refs::new() }
-    }
-}
-
-fn f() {
-    let (mut c1, mut c2, mut c3);
-    c1 = C::new();
-    c2 = C::new();
-    c3 = C::new();
-
-    c1.refs.v.push(Cell::new(None));
-    c1.refs.v.push(Cell::new(None));
-    c2.refs.v.push(Cell::new(None));
-    c2.refs.v.push(Cell::new(None));
-    c3.refs.v.push(Cell::new(None));
-    c3.refs.v.push(Cell::new(None));
-
-    c1.refs.v[0].set(Some(&c2));
-    c1.refs.v[1].set(Some(&c3));
-    c2.refs.v[0].set(Some(&c2));
-    c2.refs.v[1].set(Some(&c3));
-    c3.refs.v[0].set(Some(&c1));
-    c3.refs.v[1].set(Some(&c2));
-}
-
-fn main() {
-    f();
-}