Move /src/test to /tests

59 files changed, 0 insertions, 1575 deletions

diff --git a/src/test/ui/coercion/auxiliary/issue-39823.rs b/src/test/ui/coercion/auxiliary/issue-39823.rs
deleted file mode 100644
index 3af9c68f233..00000000000
--- a/src/test/ui/coercion/auxiliary/issue-39823.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-#![crate_type="rlib"]
-
-#[derive(Debug, PartialEq)]
-pub struct RemoteC(pub u32);
-
-#[derive(Debug, PartialEq)]
-pub struct RemoteG<T>(pub T);
diff --git a/src/test/ui/coercion/coerce-block-tail-26978.rs b/src/test/ui/coercion/coerce-block-tail-26978.rs
deleted file mode 100644
index 01c8ab5a839..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-26978.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-// check-fail
-fn f(_: &i32) {}
-
-fn main() {
-    let x = Box::new(1i32);
-
-    f(&x);
-    f(&(x));
-    f(&{x});
-    //~^ ERROR mismatched types
-}
diff --git a/src/test/ui/coercion/coerce-block-tail-26978.stderr b/src/test/ui/coercion/coerce-block-tail-26978.stderr
deleted file mode 100644
index 384debd487c..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-26978.stderr
+++ /dev/null
@@ -1,16 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-block-tail-26978.rs:9:9
-   |
-LL |     f(&{x});
-   |         ^ expected `i32`, found struct `Box`
-   |
-   = note: expected type `i32`
-            found struct `Box<i32>`
-help: consider unboxing the value
-   |
-LL |     f(&{*x});
-   |         +
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-block-tail-57749.rs b/src/test/ui/coercion/coerce-block-tail-57749.rs
deleted file mode 100644
index 79b5b33233b..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-57749.rs
+++ /dev/null
@@ -1,35 +0,0 @@
-// check-fail
-use std::ops::Deref;
-
-fn main() {
-    fn save(who: &str) {
-        println!("I'll save you, {}!", who);
-    }
-
-    struct Madoka;
-
-    impl Deref for Madoka {
-        type Target = str;
-        fn deref(&self) -> &Self::Target {
-            "Madoka"
-        }
-    }
-
-    save(&{ Madoka });
-
-    fn reset(how: &u32) {
-        println!("Reset {} times", how);
-    }
-
-    struct Homura;
-
-    impl Deref for Homura {
-        type Target = u32;
-        fn deref(&self) -> &Self::Target {
-            &42
-        }
-    }
-
-    reset(&{ Homura });
-    //~^ ERROR mismatched types
-}
diff --git a/src/test/ui/coercion/coerce-block-tail-57749.stderr b/src/test/ui/coercion/coerce-block-tail-57749.stderr
deleted file mode 100644
index d5660c81dbd..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-57749.stderr
+++ /dev/null
@@ -1,14 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-block-tail-57749.rs:33:14
-   |
-LL |     reset(&{ Homura });
-   |              ^^^^^^ expected `u32`, found struct `Homura`
-   |
-help: consider dereferencing the type
-   |
-LL |     reset(&{ *Homura });
-   |              +
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-block-tail-83783.rs b/src/test/ui/coercion/coerce-block-tail-83783.rs
deleted file mode 100644
index 18c8ae3bbba..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-83783.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-// check-fail
-// edition:2018
-fn _consume_reference<T: ?Sized>(_: &T) {}
-
-async fn _foo() {
-    _consume_reference::<i32>(&Box::new(7_i32));
-    _consume_reference::<i32>(&async { Box::new(7_i32) }.await);
-    //~^ ERROR mismatched types
-    _consume_reference::<[i32]>(&vec![7_i32]);
-    _consume_reference::<[i32]>(&async { vec![7_i32] }.await);
-}
-
-fn main() { }
diff --git a/src/test/ui/coercion/coerce-block-tail-83783.stderr b/src/test/ui/coercion/coerce-block-tail-83783.stderr
deleted file mode 100644
index 5f53606ce22..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-83783.stderr
+++ /dev/null
@@ -1,12 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-block-tail-83783.rs:7:32
-   |
-LL |     _consume_reference::<i32>(&async { Box::new(7_i32) }.await);
-   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found struct `Box`
-   |
-   = note: expected type `i32`
-            found struct `Box<i32>`
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-block-tail-83850.rs b/src/test/ui/coercion/coerce-block-tail-83850.rs
deleted file mode 100644
index 77fdf999833..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-83850.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-// check-fail
-fn f(_: &[i32]) {}
-
-fn main() {
-    f(&Box::new([1, 2]));
-    //~^ ERROR mismatched types
-}
diff --git a/src/test/ui/coercion/coerce-block-tail-83850.stderr b/src/test/ui/coercion/coerce-block-tail-83850.stderr
deleted file mode 100644
index bbf60754370..00000000000
--- a/src/test/ui/coercion/coerce-block-tail-83850.stderr
+++ /dev/null
@@ -1,19 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-block-tail-83850.rs:5:7
-   |
-LL |     f(&Box::new([1, 2]));
-   |     - ^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found struct `Box`
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected reference `&[i32]`
-              found reference `&Box<[{integer}; 2]>`
-note: function defined here
-  --> $DIR/coerce-block-tail-83850.rs:2:4
-   |
-LL | fn f(_: &[i32]) {}
-   |    ^ ---------
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-block-tail.rs b/src/test/ui/coercion/coerce-block-tail.rs
deleted file mode 100644
index dcbcd376286..00000000000
--- a/src/test/ui/coercion/coerce-block-tail.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-// check-fail
-fn main() {
-    let _: &str = & { String::from("hahah")};
-    let _: &i32 = & { Box::new(1i32) };
-    //~^ ERROR mismatched types
-}
diff --git a/src/test/ui/coercion/coerce-block-tail.stderr b/src/test/ui/coercion/coerce-block-tail.stderr
deleted file mode 100644
index 318cf75867b..00000000000
--- a/src/test/ui/coercion/coerce-block-tail.stderr
+++ /dev/null
@@ -1,16 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-block-tail.rs:4:23
-   |
-LL |     let _: &i32 = & { Box::new(1i32) };
-   |                       ^^^^^^^^^^^^^^ expected `i32`, found struct `Box`
-   |
-   = note: expected type `i32`
-            found struct `Box<i32>`
-help: consider unboxing the value
-   |
-LL |     let _: &i32 = & { *Box::new(1i32) };
-   |                       +
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-expect-unsized-ascribed.rs b/src/test/ui/coercion/coerce-expect-unsized-ascribed.rs
deleted file mode 100644
index d7b11317ad5..00000000000
--- a/src/test/ui/coercion/coerce-expect-unsized-ascribed.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-// A version of coerce-expect-unsized that uses type ascription.
-// Doesn't work so far, but supposed to work eventually
-
-#![feature(box_syntax, type_ascription)]
-
-use std::fmt::Debug;
-
-pub fn main() {
-    let _ = type_ascribe!(box { [1, 2, 3] }, Box<[i32]>); //~ ERROR mismatched types
-    let _ = type_ascribe!(box if true { [1, 2, 3] } else { [1, 3, 4] }, Box<[i32]>); //~ ERROR mismatched types
-    let _ = type_ascribe!(box match true { true => [1, 2, 3], false => [1, 3, 4] }, Box<[i32]>);
-    //~^ ERROR mismatched types
-    let _ = type_ascribe!(box { |x| (x as u8) }, Box<dyn Fn(i32) -> _>); //~ ERROR mismatched types
-    let _ = type_ascribe!(box if true { false } else { true }, Box<dyn Debug>); //~ ERROR mismatched types
-    let _ = type_ascribe!(box match true { true => 'a', false => 'b' }, Box<dyn Debug>); //~ ERROR mismatched types
-
-    let _ = type_ascribe!(&{ [1, 2, 3] }, &[i32]); //~ ERROR mismatched types
-    let _ = type_ascribe!(&if true { [1, 2, 3] } else { [1, 3, 4] }, &[i32]); //~ ERROR mismatched types
-    let _ = type_ascribe!(&match true { true => [1, 2, 3], false => [1, 3, 4] }, &[i32]);
-    //~^ ERROR mismatched types
-    let _ = type_ascribe!(&{ |x| (x as u8) }, &dyn Fn(i32) -> _); //~ ERROR mismatched types
-    let _ = type_ascribe!(&if true { false } else { true }, &dyn Debug); //~ ERROR mismatched types
-    let _ = type_ascribe!(&match true { true => 'a', false => 'b' }, &dyn Debug); //~ ERROR mismatched types
-
-    let _ = type_ascribe!(Box::new([1, 2, 3]), Box<[i32]>); //~ ERROR mismatched types
-    let _ = type_ascribe!(Box::new(|x| (x as u8)), Box<dyn Fn(i32) -> _>); //~ ERROR mismatched types
-
-    let _ = type_ascribe!(vec![
-        Box::new(|x| (x as u8)),
-        box |x| (x as i16 as u8),
-    ], Vec<Box<dyn Fn(i32) -> _>>);
-}
diff --git a/src/test/ui/coercion/coerce-expect-unsized-ascribed.stderr b/src/test/ui/coercion/coerce-expect-unsized-ascribed.stderr
deleted file mode 100644
index 44968244c4d..00000000000
--- a/src/test/ui/coercion/coerce-expect-unsized-ascribed.stderr
+++ /dev/null
@@ -1,129 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:9:27
-   |
-LL |     let _ = type_ascribe!(box { [1, 2, 3] }, Box<[i32]>);
-   |                           ^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]`
-   |
-   = note: expected struct `Box<[i32]>`
-              found struct `Box<[i32; 3]>`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:10:27
-   |
-LL |     let _ = type_ascribe!(box if true { [1, 2, 3] } else { [1, 3, 4] }, Box<[i32]>);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]`
-   |
-   = note: expected struct `Box<[i32]>`
-              found struct `Box<[i32; 3]>`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:11:27
-   |
-LL |     let _ = type_ascribe!(box match true { true => [1, 2, 3], false => [1, 3, 4] }, Box<[i32]>);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]`
-   |
-   = note: expected struct `Box<[i32]>`
-              found struct `Box<[i32; 3]>`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:13:27
-   |
-LL |     let _ = type_ascribe!(box { |x| (x as u8) }, Box<dyn Fn(i32) -> _>);
-   |                           ^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure
-   |
-   = note: expected struct `Box<dyn Fn(i32) -> u8>`
-              found struct `Box<[closure@$DIR/coerce-expect-unsized-ascribed.rs:13:33: 13:36]>`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:14:27
-   |
-LL |     let _ = type_ascribe!(box if true { false } else { true }, Box<dyn Debug>);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `bool`
-   |
-   = note: expected struct `Box<dyn Debug>`
-              found struct `Box<bool>`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:15:27
-   |
-LL |     let _ = type_ascribe!(box match true { true => 'a', false => 'b' }, Box<dyn Debug>);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `char`
-   |
-   = note: expected struct `Box<dyn Debug>`
-              found struct `Box<char>`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:17:27
-   |
-LL |     let _ = type_ascribe!(&{ [1, 2, 3] }, &[i32]);
-   |                           ^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]`
-   |
-   = note: expected reference `&[i32]`
-              found reference `&[i32; 3]`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:18:27
-   |
-LL |     let _ = type_ascribe!(&if true { [1, 2, 3] } else { [1, 3, 4] }, &[i32]);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]`
-   |
-   = note: expected reference `&[i32]`
-              found reference `&[i32; 3]`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:19:27
-   |
-LL |     let _ = type_ascribe!(&match true { true => [1, 2, 3], false => [1, 3, 4] }, &[i32]);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]`
-   |
-   = note: expected reference `&[i32]`
-              found reference `&[i32; 3]`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:21:27
-   |
-LL |     let _ = type_ascribe!(&{ |x| (x as u8) }, &dyn Fn(i32) -> _);
-   |                           ^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure
-   |
-   = note: expected reference `&dyn Fn(i32) -> u8`
-              found reference `&[closure@$DIR/coerce-expect-unsized-ascribed.rs:21:30: 21:33]`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:22:27
-   |
-LL |     let _ = type_ascribe!(&if true { false } else { true }, &dyn Debug);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `bool`
-   |
-   = note: expected reference `&dyn Debug`
-              found reference `&bool`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:23:27
-   |
-LL |     let _ = type_ascribe!(&match true { true => 'a', false => 'b' }, &dyn Debug);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `char`
-   |
-   = note: expected reference `&dyn Debug`
-              found reference `&char`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:25:27
-   |
-LL |     let _ = type_ascribe!(Box::new([1, 2, 3]), Box<[i32]>);
-   |                           ^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]`
-   |
-   = note: expected struct `Box<[i32]>`
-              found struct `Box<[i32; 3]>`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-expect-unsized-ascribed.rs:26:27
-   |
-LL |     let _ = type_ascribe!(Box::new(|x| (x as u8)), Box<dyn Fn(i32) -> _>);
-   |                           ^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure
-   |
-   = note: expected struct `Box<dyn Fn(i32) -> u8>`
-              found struct `Box<[closure@$DIR/coerce-expect-unsized-ascribed.rs:26:36: 26:39]>`
-
-error: aborting due to 14 previous errors
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-expect-unsized.rs b/src/test/ui/coercion/coerce-expect-unsized.rs
deleted file mode 100644
index eeb8fe82346..00000000000
--- a/src/test/ui/coercion/coerce-expect-unsized.rs
+++ /dev/null
@@ -1,43 +0,0 @@
-// run-pass
-#![allow(unused_braces)]
-
-use std::cell::RefCell;
-use std::fmt::Debug;
-use std::rc::Rc;
-
-// Check that coercions apply at the pointer level and don't cause
-// rvalue expressions to be unsized. See #20169 for more information.
-
-pub fn main() {
-    let _: Box<[isize]> = Box::new({ [1, 2, 3] });
-    let _: Box<[isize]> = Box::new(if true { [1, 2, 3] } else { [1, 3, 4] });
-    let _: Box<[isize]> = Box::new(match true { true => [1, 2, 3], false => [1, 3, 4] });
-    let _: Box<dyn Fn(isize) -> _> = Box::new({ |x| (x as u8) });
-    let _: Box<dyn Debug> = Box::new(if true { false } else { true });
-    let _: Box<dyn Debug> = Box::new(match true { true => 'a', false => 'b' });
-
-    let _: &[isize] = &{ [1, 2, 3] };
-    let _: &[isize] = &if true { [1, 2, 3] } else { [1, 3, 4] };
-    let _: &[isize] = &match true { true => [1, 2, 3], false => [1, 3, 4] };
-    let _: &dyn Fn(isize) -> _ = &{ |x| (x as u8) };
-    let _: &dyn Debug = &if true { false } else { true };
-    let _: &dyn Debug = &match true { true => 'a', false => 'b' };
-
-    let _: &str = &{ String::new() };
-    let _: &str = &if true { String::from("...") } else { 5.to_string() };
-    let _: &str = &match true {
-        true => format!("{}", false),
-        false => ["x", "y"].join("+")
-    };
-
-    let _: Box<[isize]> = Box::new([1, 2, 3]);
-    let _: Box<dyn Fn(isize) -> _> = Box::new(|x| (x as u8));
-
-    let _: Rc<RefCell<[isize]>> = Rc::new(RefCell::new([1, 2, 3]));
-    let _: Rc<RefCell<dyn FnMut(isize) -> _>> = Rc::new(RefCell::new(|x| (x as u8)));
-
-    let _: Vec<Box<dyn Fn(isize) -> _>> = vec![
-        Box::new(|x| (x as u8)),
-        Box::new(|x| (x as i16 as u8)),
-    ];
-}
diff --git a/src/test/ui/coercion/coerce-issue-49593-box-never-windows.nofallback.stderr b/src/test/ui/coercion/coerce-issue-49593-box-never-windows.nofallback.stderr
deleted file mode 100644
index 980da536034..00000000000
--- a/src/test/ui/coercion/coerce-issue-49593-box-never-windows.nofallback.stderr
+++ /dev/null
@@ -1,19 +0,0 @@
-error[E0277]: the trait bound `(): std::error::Error` is not satisfied
-  --> $DIR/coerce-issue-49593-box-never-windows.rs:18:53
-   |
-LL |     /* *mut $0 is coerced to Box<dyn Error> here */ Box::<_ /* ! */>::new(x)
-   |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `()`
-   |
-   = note: required for the cast from `()` to the object type `dyn std::error::Error`
-
-error[E0277]: the trait bound `(): std::error::Error` is not satisfied
-  --> $DIR/coerce-issue-49593-box-never-windows.rs:23:49
-   |
-LL |     /* *mut $0 is coerced to *mut Error here */ raw_ptr_box::<_ /* ! */>(x)
-   |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `()`
-   |
-   = note: required for the cast from `()` to the object type `(dyn std::error::Error + 'static)`
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/src/test/ui/coercion/coerce-issue-49593-box-never-windows.rs b/src/test/ui/coercion/coerce-issue-49593-box-never-windows.rs
deleted file mode 100644
index 95d3935caa9..00000000000
--- a/src/test/ui/coercion/coerce-issue-49593-box-never-windows.rs
+++ /dev/null
@@ -1,58 +0,0 @@
-// revisions: nofallback fallback
-// only-windows - the number of `Error` impls is platform-dependent
-//[fallback] check-pass
-//[nofallback] check-fail
-
-#![feature(never_type)]
-#![cfg_attr(fallback, feature(never_type_fallback))]
-#![allow(unreachable_code)]
-
-use std::error::Error;
-use std::mem;
-
-fn raw_ptr_box<T>(t: T) -> *mut T {
-    panic!()
-}
-
-fn foo(x: !) -> Box<dyn Error> {
-    /* *mut $0 is coerced to Box<dyn Error> here */ Box::<_ /* ! */>::new(x)
-    //[nofallback]~^ ERROR trait bound `(): std::error::Error` is not satisfied
-}
-
-fn foo_raw_ptr(x: !) -> *mut dyn Error {
-    /* *mut $0 is coerced to *mut Error here */ raw_ptr_box::<_ /* ! */>(x)
-    //[nofallback]~^ ERROR trait bound `(): std::error::Error` is not satisfied
-}
-
-fn no_coercion(d: *mut dyn Error) -> *mut dyn Error {
-    /* an unsize coercion won't compile here, and it is indeed not used
-       because there is nothing requiring the _ to be Sized */
-    d as *mut _
-}
-
-trait Xyz {}
-struct S;
-struct T;
-impl Xyz for S {}
-impl Xyz for T {}
-
-fn foo_no_never() {
-    let mut x /* : Option<S> */ = None;
-    let mut first_iter = false;
-    loop {
-        if !first_iter {
-            let y: Box<dyn Xyz>
-                = /* Box<$0> is coerced to Box<Xyz> here */ Box::new(x.unwrap());
-        }
-
-        x = Some(S);
-        first_iter = true;
-    }
-
-    let mut y : Option<S> = None;
-    // assert types are equal
-    mem::swap(&mut x, &mut y);
-}
-
-fn main() {
-}
diff --git a/src/test/ui/coercion/coerce-issue-49593-box-never.nofallback.stderr b/src/test/ui/coercion/coerce-issue-49593-box-never.nofallback.stderr
deleted file mode 100644
index 322681b97bc..00000000000
--- a/src/test/ui/coercion/coerce-issue-49593-box-never.nofallback.stderr
+++ /dev/null
@@ -1,19 +0,0 @@
-error[E0277]: the trait bound `(): std::error::Error` is not satisfied
-  --> $DIR/coerce-issue-49593-box-never.rs:18:53
-   |
-LL |     /* *mut $0 is coerced to Box<dyn Error> here */ Box::<_ /* ! */>::new(x)
-   |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `()`
-   |
-   = note: required for the cast from `()` to the object type `dyn std::error::Error`
-
-error[E0277]: the trait bound `(): std::error::Error` is not satisfied
-  --> $DIR/coerce-issue-49593-box-never.rs:23:49
-   |
-LL |     /* *mut $0 is coerced to *mut Error here */ raw_ptr_box::<_ /* ! */>(x)
-   |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `()`
-   |
-   = note: required for the cast from `()` to the object type `(dyn std::error::Error + 'static)`
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/src/test/ui/coercion/coerce-issue-49593-box-never.rs b/src/test/ui/coercion/coerce-issue-49593-box-never.rs
deleted file mode 100644
index 16efb65acb2..00000000000
--- a/src/test/ui/coercion/coerce-issue-49593-box-never.rs
+++ /dev/null
@@ -1,58 +0,0 @@
-// revisions: nofallback fallback
-// ignore-windows - the number of `Error` impls is platform-dependent
-//[fallback] check-pass
-//[nofallback] check-fail
-
-#![feature(never_type)]
-#![cfg_attr(fallback, feature(never_type_fallback))]
-#![allow(unreachable_code)]
-
-use std::error::Error;
-use std::mem;
-
-fn raw_ptr_box<T>(t: T) -> *mut T {
-    panic!()
-}
-
-fn foo(x: !) -> Box<dyn Error> {
-    /* *mut $0 is coerced to Box<dyn Error> here */ Box::<_ /* ! */>::new(x)
-    //[nofallback]~^ ERROR trait bound `(): std::error::Error` is not satisfied
-}
-
-fn foo_raw_ptr(x: !) -> *mut dyn Error {
-    /* *mut $0 is coerced to *mut Error here */ raw_ptr_box::<_ /* ! */>(x)
-    //[nofallback]~^ ERROR trait bound `(): std::error::Error` is not satisfied
-}
-
-fn no_coercion(d: *mut dyn Error) -> *mut dyn Error {
-    /* an unsize coercion won't compile here, and it is indeed not used
-       because there is nothing requiring the _ to be Sized */
-    d as *mut _
-}
-
-trait Xyz {}
-struct S;
-struct T;
-impl Xyz for S {}
-impl Xyz for T {}
-
-fn foo_no_never() {
-    let mut x /* : Option<S> */ = None;
-    let mut first_iter = false;
-    loop {
-        if !first_iter {
-            let y: Box<dyn Xyz>
-                = /* Box<$0> is coerced to Box<Xyz> here */ Box::new(x.unwrap());
-        }
-
-        x = Some(S);
-        first_iter = true;
-    }
-
-    let mut y : Option<S> = None;
-    // assert types are equal
-    mem::swap(&mut x, &mut y);
-}
-
-fn main() {
-}
diff --git a/src/test/ui/coercion/coerce-mut.rs b/src/test/ui/coercion/coerce-mut.rs
deleted file mode 100644
index 43f0b55856d..00000000000
--- a/src/test/ui/coercion/coerce-mut.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-fn f(x: &mut i32) {}
-
-fn main() {
-    let x = 0;
-    f(&x);
-    //~^ ERROR mismatched types
-    //~| expected mutable reference `&mut i32`
-    //~| found reference `&{integer}`
-    //~| types differ in mutability
-}
diff --git a/src/test/ui/coercion/coerce-mut.stderr b/src/test/ui/coercion/coerce-mut.stderr
deleted file mode 100644
index 11a4f310154..00000000000
--- a/src/test/ui/coercion/coerce-mut.stderr
+++ /dev/null
@@ -1,19 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-mut.rs:5:7
-   |
-LL |     f(&x);
-   |     - ^^ types differ in mutability
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected mutable reference `&mut i32`
-                      found reference `&{integer}`
-note: function defined here
-  --> $DIR/coerce-mut.rs:1:4
-   |
-LL | fn f(x: &mut i32) {}
-   |    ^ -----------
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-overloaded-autoderef-fail.rs b/src/test/ui/coercion/coerce-overloaded-autoderef-fail.rs
deleted file mode 100644
index 01d9c1e486a..00000000000
--- a/src/test/ui/coercion/coerce-overloaded-autoderef-fail.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-fn borrow_mut<T>(x: &mut T) -> &mut T { x }
-fn borrow<T>(x: &T) -> &T { x }
-
-fn borrow_mut2<T>(_: &mut T, _: &mut T) {}
-fn borrow2<T>(_: &mut T, _: &T) {}
-
-fn double_mut_borrow<T>(x: &mut Box<T>) {
-    let y = borrow_mut(x);
-    let z = borrow_mut(x);
-    //~^ ERROR cannot borrow `*x` as mutable more than once at a time
-    drop((y, z));
-}
-
-fn double_imm_borrow(x: &mut Box<i32>) {
-    let y = borrow(x);
-    let z = borrow(x);
-    **x += 1;
-    //~^ ERROR cannot assign to `**x` because it is borrowed
-    drop((y, z));
-}
-
-fn double_mut_borrow2<T>(x: &mut Box<T>) {
-    borrow_mut2(x, x);
-    //~^ ERROR cannot borrow `*x` as mutable more than once at a time
-}
-
-fn double_borrow2<T>(x: &mut Box<T>) {
-    borrow2(x, x);
-    //~^ ERROR cannot borrow `*x` as mutable because it is also borrowed as immutable
-}
-
-pub fn main() {}
diff --git a/src/test/ui/coercion/coerce-overloaded-autoderef-fail.stderr b/src/test/ui/coercion/coerce-overloaded-autoderef-fail.stderr
deleted file mode 100644
index d067c3b3a18..00000000000
--- a/src/test/ui/coercion/coerce-overloaded-autoderef-fail.stderr
+++ /dev/null
@@ -1,46 +0,0 @@
-error[E0499]: cannot borrow `*x` as mutable more than once at a time
-  --> $DIR/coerce-overloaded-autoderef-fail.rs:9:24
-   |
-LL |     let y = borrow_mut(x);
-   |                        - first mutable borrow occurs here
-LL |     let z = borrow_mut(x);
-   |                        ^ second mutable borrow occurs here
-LL |
-LL |     drop((y, z));
-   |           - first borrow later used here
-
-error[E0506]: cannot assign to `**x` because it is borrowed
-  --> $DIR/coerce-overloaded-autoderef-fail.rs:17:5
-   |
-LL |     let y = borrow(x);
-   |                    - borrow of `**x` occurs here
-LL |     let z = borrow(x);
-LL |     **x += 1;
-   |     ^^^^^^^^ assignment to borrowed `**x` occurs here
-LL |
-LL |     drop((y, z));
-   |           - borrow later used here
-
-error[E0499]: cannot borrow `*x` as mutable more than once at a time
-  --> $DIR/coerce-overloaded-autoderef-fail.rs:23:20
-   |
-LL |     borrow_mut2(x, x);
-   |     ----------- -  ^ second mutable borrow occurs here
-   |     |           |
-   |     |           first mutable borrow occurs here
-   |     first borrow later used by call
-
-error[E0502]: cannot borrow `*x` as mutable because it is also borrowed as immutable
-  --> $DIR/coerce-overloaded-autoderef-fail.rs:28:5
-   |
-LL |     borrow2(x, x);
-   |     -------^^^^-^
-   |     |          |
-   |     |          immutable borrow occurs here
-   |     mutable borrow occurs here
-   |     immutable borrow later used by call
-
-error: aborting due to 4 previous errors
-
-Some errors have detailed explanations: E0499, E0502, E0506.
-For more information about an error, try `rustc --explain E0499`.
diff --git a/src/test/ui/coercion/coerce-overloaded-autoderef.rs b/src/test/ui/coercion/coerce-overloaded-autoderef.rs
deleted file mode 100644
index d5484607c8b..00000000000
--- a/src/test/ui/coercion/coerce-overloaded-autoderef.rs
+++ /dev/null
@@ -1,68 +0,0 @@
-// run-pass
-#![allow(unused_braces)]
-#![allow(dead_code)]
-// pretty-expanded FIXME #23616
-
-use std::rc::Rc;
-
-// Examples from the "deref coercions" RFC, at rust-lang/rfcs#241.
-
-fn use_ref<T>(_: &T) {}
-fn use_mut<T>(_: &mut T) {}
-
-fn use_rc<T>(t: Rc<T>) {
-    use_ref(&*t);  // what you have to write today
-    use_ref(&t);   // what you'd be able to write
-    use_ref(&&&&&&t);
-    use_ref(&mut &&&&&t);
-    use_ref(&&&mut &&&t);
-}
-
-fn use_mut_box<T>(mut t: &mut Box<T>) {
-    use_mut(&mut *t); // what you have to write today
-    use_mut(t);       // what you'd be able to write
-    use_mut(&mut &mut &mut t);
-
-    use_ref(&*t);      // what you have to write today
-    use_ref(t);        // what you'd be able to write
-    use_ref(&&&&&&t);
-    use_ref(&mut &&&&&t);
-    use_ref(&&&mut &&&t);
-}
-
-fn use_nested<T>(t: &Box<T>) {
-    use_ref(&**t);  // what you have to write today
-    use_ref(t);     // what you'd be able to write (note: recursive deref)
-    use_ref(&&&&&&t);
-    use_ref(&mut &&&&&t);
-    use_ref(&&&mut &&&t);
-}
-
-fn use_slice(_: &[u8]) {}
-fn use_slice_mut(_: &mut [u8]) {}
-
-fn use_vec(mut v: Vec<u8>) {
-    use_slice_mut(&mut v[..]); // what you have to write today
-    use_slice_mut(&mut v);     // what you'd be able to write
-    use_slice_mut(&mut &mut &mut v);
-
-    use_slice(&v[..]);  // what you have to write today
-    use_slice(&v);      // what you'd be able to write
-    use_slice(&&&&&&v);
-    use_slice(&mut &&&&&v);
-    use_slice(&&&mut &&&v);
-}
-
-fn use_vec_ref(v: &Vec<u8>) {
-    use_slice(&v[..]);  // what you have to write today
-    use_slice(v);       // what you'd be able to write
-    use_slice(&&&&&&v);
-    use_slice(&mut &&&&&v);
-    use_slice(&&&mut &&&v);
-}
-
-fn use_op_rhs(s: &mut String) {
-    *s += {&String::from(" ")};
-}
-
-pub fn main() {}
diff --git a/src/test/ui/coercion/coerce-reborrow-imm-ptr-arg.rs b/src/test/ui/coercion/coerce-reborrow-imm-ptr-arg.rs
deleted file mode 100644
index f033e1b5d2b..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-imm-ptr-arg.rs
+++ /dev/null
@@ -1,17 +0,0 @@
-// run-pass
-#![allow(dead_code)]
-// pretty-expanded FIXME #23616
-
-fn negate(x: &isize) -> isize {
-    -*x
-}
-
-fn negate_mut(y: &mut isize) -> isize {
-    negate(y)
-}
-
-fn negate_imm(y: &isize) -> isize {
-    negate(y)
-}
-
-pub fn main() {}
diff --git a/src/test/ui/coercion/coerce-reborrow-imm-ptr-rcvr.rs b/src/test/ui/coercion/coerce-reborrow-imm-ptr-rcvr.rs
deleted file mode 100644
index 64a365229cb..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-imm-ptr-rcvr.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-// run-pass
-
-struct SpeechMaker {
-    speeches: usize
-}
-
-impl SpeechMaker {
-    pub fn how_many(&self) -> usize { self.speeches }
-}
-
-fn foo(speaker: &SpeechMaker) -> usize {
-    speaker.how_many() + 33
-}
-
-pub fn main() {
-    let lincoln = SpeechMaker {speeches: 22};
-    assert_eq!(foo(&lincoln), 55);
-}
diff --git a/src/test/ui/coercion/coerce-reborrow-imm-vec-arg.rs b/src/test/ui/coercion/coerce-reborrow-imm-vec-arg.rs
deleted file mode 100644
index c2aaae1c73e..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-imm-vec-arg.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// run-pass
-#![allow(dead_code)]
-// pretty-expanded FIXME #23616
-
-fn sum(x: &[isize]) -> isize {
-    let mut sum = 0;
-    for y in x { sum += *y; }
-    return sum;
-}
-
-fn sum_mut(y: &mut [isize]) -> isize {
-    sum(y)
-}
-
-fn sum_imm(y: &[isize]) -> isize {
-    sum(y)
-}
-
-pub fn main() {}
diff --git a/src/test/ui/coercion/coerce-reborrow-imm-vec-rcvr.rs b/src/test/ui/coercion/coerce-reborrow-imm-vec-rcvr.rs
deleted file mode 100644
index 9a5652acf87..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-imm-vec-rcvr.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-// run-pass
-
-
-fn bar(v: &mut [usize]) -> Vec<usize> {
-    v.to_vec()
-}
-
-fn bip(v: &[usize]) -> Vec<usize> {
-    v.to_vec()
-}
-
-pub fn main() {
-    let mut the_vec = vec![1, 2, 3, 100];
-    assert_eq!(the_vec.clone(), bar(&mut the_vec));
-    assert_eq!(the_vec.clone(), bip(&the_vec));
-}
diff --git a/src/test/ui/coercion/coerce-reborrow-multi-arg-fail.rs b/src/test/ui/coercion/coerce-reborrow-multi-arg-fail.rs
deleted file mode 100644
index 48be2d3146b..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-multi-arg-fail.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-fn test<T>(_a: T, _b: T) {}
-
-fn main() {
-    test(&mut 7, &7);
-    //~^ mismatched types
-}
diff --git a/src/test/ui/coercion/coerce-reborrow-multi-arg-fail.stderr b/src/test/ui/coercion/coerce-reborrow-multi-arg-fail.stderr
deleted file mode 100644
index 5cbdef21831..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-multi-arg-fail.stderr
+++ /dev/null
@@ -1,19 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-reborrow-multi-arg-fail.rs:4:18
-   |
-LL |     test(&mut 7, &7);
-   |     ----         ^^ types differ in mutability
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected mutable reference `&mut {integer}`
-                      found reference `&{integer}`
-note: function defined here
-  --> $DIR/coerce-reborrow-multi-arg-fail.rs:1:4
-   |
-LL | fn test<T>(_a: T, _b: T) {}
-   |    ^^^^           -----
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-reborrow-multi-arg.rs b/src/test/ui/coercion/coerce-reborrow-multi-arg.rs
deleted file mode 100644
index 93cd0bb3e27..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-multi-arg.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-// build-pass
-fn test<T>(_a: T, _b: T) {}
-
-fn main() {
-    test(&7, &7);
-    test(&7, &mut 7);
-    test::<&i32>(&mut 7, &7);
-    test::<&i32>(&mut 7, &mut 7);
-}
diff --git a/src/test/ui/coercion/coerce-reborrow-mut-ptr-arg.rs b/src/test/ui/coercion/coerce-reborrow-mut-ptr-arg.rs
deleted file mode 100644
index 76cd6793b3c..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-mut-ptr-arg.rs
+++ /dev/null
@@ -1,25 +0,0 @@
-// run-pass
-// pretty-expanded FIXME #23616
-
-struct SpeechMaker {
-    speeches: usize
-}
-
-fn talk(x: &mut SpeechMaker) {
-    x.speeches += 1;
-}
-
-fn give_a_few_speeches(speaker: &mut SpeechMaker) {
-
-    // Here speaker is reborrowed for each call, so we don't get errors
-    // about speaker being moved.
-
-    talk(speaker);
-    talk(speaker);
-    talk(speaker);
-}
-
-pub fn main() {
-    let mut lincoln = SpeechMaker {speeches: 22};
-    give_a_few_speeches(&mut lincoln);
-}
diff --git a/src/test/ui/coercion/coerce-reborrow-mut-ptr-rcvr.rs b/src/test/ui/coercion/coerce-reborrow-mut-ptr-rcvr.rs
deleted file mode 100644
index e6e7c3a51aa..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-mut-ptr-rcvr.rs
+++ /dev/null
@@ -1,27 +0,0 @@
-// run-pass
-// pretty-expanded FIXME #23616
-
-struct SpeechMaker {
-    speeches: usize
-}
-
-impl SpeechMaker {
-    pub fn talk(&mut self) {
-        self.speeches += 1;
-    }
-}
-
-fn give_a_few_speeches(speaker: &mut SpeechMaker) {
-
-    // Here speaker is reborrowed for each call, so we don't get errors
-    // about speaker being moved.
-
-    speaker.talk();
-    speaker.talk();
-    speaker.talk();
-}
-
-pub fn main() {
-    let mut lincoln = SpeechMaker {speeches: 22};
-    give_a_few_speeches(&mut lincoln);
-}
diff --git a/src/test/ui/coercion/coerce-reborrow-mut-vec-arg.rs b/src/test/ui/coercion/coerce-reborrow-mut-vec-arg.rs
deleted file mode 100644
index 2635754f14d..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-mut-vec-arg.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-// run-pass
-
-
-fn reverse(v: &mut [usize]) {
-    v.reverse();
-}
-
-fn bar(v: &mut [usize]) {
-    reverse(v);
-    reverse(v);
-    reverse(v);
-}
-
-pub fn main() {
-    let mut the_vec = vec![1, 2, 3, 100];
-    bar(&mut the_vec);
-    assert_eq!(the_vec, [100, 3, 2, 1]);
-}
diff --git a/src/test/ui/coercion/coerce-reborrow-mut-vec-rcvr.rs b/src/test/ui/coercion/coerce-reborrow-mut-vec-rcvr.rs
deleted file mode 100644
index c03336ea37a..00000000000
--- a/src/test/ui/coercion/coerce-reborrow-mut-vec-rcvr.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-// run-pass
-
-
-fn bar(v: &mut [usize]) {
-    v.reverse();
-    v.reverse();
-    v.reverse();
-}
-
-pub fn main() {
-    let mut the_vec = vec![1, 2, 3, 100];
-    bar(&mut the_vec);
-    assert_eq!(the_vec, [100, 3, 2, 1]);
-}
diff --git a/src/test/ui/coercion/coerce-to-bang-cast.rs b/src/test/ui/coercion/coerce-to-bang-cast.rs
deleted file mode 100644
index 85598a42ecc..00000000000
--- a/src/test/ui/coercion/coerce-to-bang-cast.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-#![feature(never_type)]
-
-fn cast_a() {
-    let y = {return; 22} as !;
-    //~^ ERROR non-primitive cast
-}
-
-fn cast_b() {
-    let y = 22 as !; //~ ERROR non-primitive cast
-}
-
-fn main() { }
diff --git a/src/test/ui/coercion/coerce-to-bang-cast.stderr b/src/test/ui/coercion/coerce-to-bang-cast.stderr
deleted file mode 100644
index 50e009aa25b..00000000000
--- a/src/test/ui/coercion/coerce-to-bang-cast.stderr
+++ /dev/null
@@ -1,15 +0,0 @@
-error[E0605]: non-primitive cast: `i32` as `!`
-  --> $DIR/coerce-to-bang-cast.rs:4:13
-   |
-LL |     let y = {return; 22} as !;
-   |             ^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
-
-error[E0605]: non-primitive cast: `i32` as `!`
-  --> $DIR/coerce-to-bang-cast.rs:9:13
-   |
-LL |     let y = 22 as !;
-   |             ^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0605`.
diff --git a/src/test/ui/coercion/coerce-to-bang.rs b/src/test/ui/coercion/coerce-to-bang.rs
deleted file mode 100644
index 1e06934d09f..00000000000
--- a/src/test/ui/coercion/coerce-to-bang.rs
+++ /dev/null
@@ -1,79 +0,0 @@
-#![feature(never_type)]
-
-fn foo(x: usize, y: !, z: usize) { }
-
-fn call_foo_a() {
-    foo(return, 22, 44);
-    //~^ ERROR mismatched types
-}
-
-fn call_foo_b() {
-    // Divergence happens in the argument itself, definitely ok.
-    foo(22, return, 44);
-}
-
-fn call_foo_c() {
-    // This test fails because the divergence happens **after** the
-    // coercion to `!`:
-    foo(22, 44, return); //~ ERROR mismatched types
-}
-
-fn call_foo_d() {
-    // This test passes because `a` has type `!`:
-    let a: ! = return;
-    let b = 22;
-    let c = 44;
-    foo(a, b, c); // ... and hence a reference to `a` is expected to diverge.
-    //~^ ERROR mismatched types
-}
-
-fn call_foo_e() {
-    // This test probably could pass but we don't *know* that `a`
-    // has type `!` so we don't let it work.
-    let a = return;
-    let b = 22;
-    let c = 44;
-    foo(a, b, c); //~ ERROR mismatched types
-}
-
-fn call_foo_f() {
-    // This fn fails because `a` has type `usize`, and hence a
-    // reference to is it **not** considered to diverge.
-    let a: usize = return;
-    let b = 22;
-    let c = 44;
-    foo(a, b, c); //~ ERROR mismatched types
-}
-
-fn array_a() {
-    // Return is coerced to `!` just fine, but `22` cannot be.
-    let x: [!; 2] = [return, 22]; //~ ERROR mismatched types
-}
-
-fn array_b() {
-    // Error: divergence has not yet occurred.
-    let x: [!; 2] = [22, return]; //~ ERROR mismatched types
-}
-
-fn tuple_a() {
-    // No divergence at all.
-    let x: (usize, !, usize) = (22, 44, 66); //~ ERROR mismatched types
-}
-
-fn tuple_b() {
-    // Divergence happens before coercion: OK
-    let x: (usize, !, usize) = (return, 44, 66);
-    //~^ ERROR mismatched types
-}
-
-fn tuple_c() {
-    // Divergence happens before coercion: OK
-    let x: (usize, !, usize) = (22, return, 66);
-}
-
-fn tuple_d() {
-    // Error: divergence happens too late
-    let x: (usize, !, usize) = (22, 44, return); //~ ERROR mismatched types
-}
-
-fn main() { }
diff --git a/src/test/ui/coercion/coerce-to-bang.stderr b/src/test/ui/coercion/coerce-to-bang.stderr
deleted file mode 100644
index 1207dc7e7a2..00000000000
--- a/src/test/ui/coercion/coerce-to-bang.stderr
+++ /dev/null
@@ -1,130 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:6:17
-   |
-LL |     foo(return, 22, 44);
-   |     ---         ^^ expected `!`, found integer
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected type `!`
-              found type `{integer}`
-note: function defined here
-  --> $DIR/coerce-to-bang.rs:3:4
-   |
-LL | fn foo(x: usize, y: !, z: usize) { }
-   |    ^^^           ----
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:18:13
-   |
-LL |     foo(22, 44, return);
-   |     ---     ^^ expected `!`, found integer
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected type `!`
-              found type `{integer}`
-note: function defined here
-  --> $DIR/coerce-to-bang.rs:3:4
-   |
-LL | fn foo(x: usize, y: !, z: usize) { }
-   |    ^^^           ----
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:26:12
-   |
-LL |     foo(a, b, c); // ... and hence a reference to `a` is expected to diverge.
-   |     ---    ^ expected `!`, found integer
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected type `!`
-              found type `{integer}`
-note: function defined here
-  --> $DIR/coerce-to-bang.rs:3:4
-   |
-LL | fn foo(x: usize, y: !, z: usize) { }
-   |    ^^^           ----
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:36:12
-   |
-LL |     foo(a, b, c);
-   |     ---    ^ expected `!`, found integer
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected type `!`
-              found type `{integer}`
-note: function defined here
-  --> $DIR/coerce-to-bang.rs:3:4
-   |
-LL | fn foo(x: usize, y: !, z: usize) { }
-   |    ^^^           ----
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:45:12
-   |
-LL |     foo(a, b, c);
-   |     ---    ^ expected `!`, found integer
-   |     |
-   |     arguments to this function are incorrect
-   |
-   = note: expected type `!`
-              found type `{integer}`
-note: function defined here
-  --> $DIR/coerce-to-bang.rs:3:4
-   |
-LL | fn foo(x: usize, y: !, z: usize) { }
-   |    ^^^           ----
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:50:21
-   |
-LL |     let x: [!; 2] = [return, 22];
-   |            ------   ^^^^^^^^^^^^ expected `!`, found integer
-   |            |
-   |            expected due to this
-   |
-   = note: expected array `[!; 2]`
-              found array `[{integer}; 2]`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:55:22
-   |
-LL |     let x: [!; 2] = [22, return];
-   |                      ^^ expected `!`, found integer
-   |
-   = note: expected type `!`
-              found type `{integer}`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:60:37
-   |
-LL |     let x: (usize, !, usize) = (22, 44, 66);
-   |                                     ^^ expected `!`, found integer
-   |
-   = note: expected type `!`
-              found type `{integer}`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:65:41
-   |
-LL |     let x: (usize, !, usize) = (return, 44, 66);
-   |                                         ^^ expected `!`, found integer
-   |
-   = note: expected type `!`
-              found type `{integer}`
-
-error[E0308]: mismatched types
-  --> $DIR/coerce-to-bang.rs:76:37
-   |
-LL |     let x: (usize, !, usize) = (22, 44, return);
-   |                                     ^^ expected `!`, found integer
-   |
-   = note: expected type `!`
-              found type `{integer}`
-
-error: aborting due to 10 previous errors
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coerce-unify-return.rs b/src/test/ui/coercion/coerce-unify-return.rs
deleted file mode 100644
index 95a7ee8fe0f..00000000000
--- a/src/test/ui/coercion/coerce-unify-return.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// run-pass
-// Check that coercions unify the expected return type of a polymorphic
-// function call, instead of leaving the type variables as they were.
-
-// pretty-expanded FIXME #23616
-
-struct Foo;
-impl Foo {
-    fn foo<T>(self, x: T) -> Option<T> { Some(x) }
-}
-
-pub fn main() {
-    let _: Option<fn()> = Some(main);
-    let _: Option<fn()> = Foo.foo(main);
-
-    // The same two cases, with implicit type variables made explicit.
-    let _: Option<fn()> = Some::<_>(main);
-    let _: Option<fn()> = Foo.foo::<_>(main);
-}
diff --git a/src/test/ui/coercion/coerce-unify.rs b/src/test/ui/coercion/coerce-unify.rs
deleted file mode 100644
index f1818f9bb5a..00000000000
--- a/src/test/ui/coercion/coerce-unify.rs
+++ /dev/null
@@ -1,68 +0,0 @@
-// run-pass
-// Check that coercions can unify if-else, match arms and array elements.
-
-// Try to construct if-else chains, matches and arrays out of given expressions.
-macro_rules! check {
-    ($last:expr $(, $rest:expr)+) => {
-        // Last expression comes first because of whacky ifs and matches.
-        let _ = $(if false { $rest })else+ else { $last };
-
-        let _ = match 0 { $(_ if false => $rest,)+ _ => $last };
-
-        let _ = [$($rest,)+ $last];
-    }
-}
-
-// Check all non-uniform cases of 2 and 3 expressions of 2 types.
-macro_rules! check2 {
-    ($a:expr, $b:expr) => {
-        check!($a, $b);
-        check!($b, $a);
-
-        check!($a, $a, $b);
-        check!($a, $b, $a);
-        check!($a, $b, $b);
-
-        check!($b, $a, $a);
-        check!($b, $a, $b);
-        check!($b, $b, $a);
-    }
-}
-
-// Check all non-uniform cases of 2 and 3 expressions of 3 types.
-macro_rules! check3 {
-    ($a:expr, $b:expr, $c:expr) => {
-        // Delegate to check2 for cases where a type repeats.
-        check2!($a, $b);
-        check2!($b, $c);
-        check2!($a, $c);
-
-        // Check the remaining cases, i.e., permutations of ($a, $b, $c).
-        check!($a, $b, $c);
-        check!($a, $c, $b);
-        check!($b, $a, $c);
-        check!($b, $c, $a);
-        check!($c, $a, $b);
-        check!($c, $b, $a);
-    }
-}
-
-use std::mem::size_of;
-
-fn foo() {}
-fn bar() {}
-
-pub fn main() {
-    check3!(foo, bar, foo as fn());
-    check3!(size_of::<u8>, size_of::<u16>, size_of::<usize> as fn() -> usize);
-
-    let s = String::from("bar");
-    check2!("foo", &s);
-
-    let a = [1, 2, 3];
-    let v = vec![1, 2, 3];
-    check2!(&a[..], &v);
-
-    // Make sure in-array coercion still works.
-    let _ = [("a", Default::default()), (Default::default(), "b"), (&s, &s)];
-}
diff --git a/src/test/ui/coercion/coerce-unsize-subtype.rs b/src/test/ui/coercion/coerce-unsize-subtype.rs
deleted file mode 100644
index 45b53300c5b..00000000000
--- a/src/test/ui/coercion/coerce-unsize-subtype.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-// run-pass
-#![allow(dead_code)]
-// pretty-expanded FIXME #23616
-
-use std::rc::Rc;
-
-fn lub_short<'a, T>(_: &[&'a T], _: &[&'a T]) {}
-
-// The two arguments are a subtype of their LUB, after coercion.
-fn long_and_short<'a, T>(xs: &[&'static T; 1], ys: &[&'a T; 1]) {
-    lub_short(xs, ys);
-}
-
-// The argument coerces to a subtype of the return type.
-fn long_to_short<'a, 'b, T>(xs: &'b [&'static T; 1]) -> &'b [&'a T] {
-    xs
-}
-
-// Rc<T> is covariant over T just like &T.
-fn long_to_short_rc<'a, T>(xs: Rc<[&'static T; 1]>) -> Rc<[&'a T]> {
-    xs
-}
-
-// LUB-coercion (if-else/match/array) coerces `xs: &'b [&'static T: N]`
-// to a subtype of the LUB of `xs` and `ys` (i.e., `&'b [&'a T]`),
-// regardless of the order they appear (in if-else/match/array).
-fn long_and_short_lub1<'a, 'b, T>(xs: &'b [&'static T; 1], ys: &'b [&'a T]) {
-    let _order1 = [xs, ys];
-    let _order2 = [ys, xs];
-}
-
-// LUB-coercion should also have the exact same effect when `&'b [&'a T; N]`
-// needs to be coerced, i.e., the resulting type is not &'b [&'static T], but
-// rather the `&'b [&'a T]` LUB.
-fn long_and_short_lub2<'a, 'b, T>(xs: &'b [&'static T], ys: &'b [&'a T; 1]) {
-    let _order1 = [xs, ys];
-    let _order2 = [ys, xs];
-}
-
-fn main() {}
diff --git a/src/test/ui/coercion/coercion-missing-tail-expected-type.fixed b/src/test/ui/coercion/coercion-missing-tail-expected-type.fixed
deleted file mode 100644
index 713e04774a0..00000000000
--- a/src/test/ui/coercion/coercion-missing-tail-expected-type.fixed
+++ /dev/null
@@ -1,16 +0,0 @@
-// #41425 -- error message "mismatched types" has wrong types
-// run-rustfix
-
-fn plus_one(x: i32) -> i32 { //~ ERROR mismatched types
-    x + 1
-}
-
-fn foo() -> Result<u8, u64> { //~ ERROR mismatched types
-    Ok(1)
-}
-
-fn main() {
-    let x = plus_one(5);
-    let _ = foo();
-    println!("X = {}", x);
-}
diff --git a/src/test/ui/coercion/coercion-missing-tail-expected-type.rs b/src/test/ui/coercion/coercion-missing-tail-expected-type.rs
deleted file mode 100644
index e14d79d8aca..00000000000
--- a/src/test/ui/coercion/coercion-missing-tail-expected-type.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-// #41425 -- error message "mismatched types" has wrong types
-// run-rustfix
-
-fn plus_one(x: i32) -> i32 { //~ ERROR mismatched types
-    x + 1;
-}
-
-fn foo() -> Result<u8, u64> { //~ ERROR mismatched types
-    Ok(1);
-}
-
-fn main() {
-    let x = plus_one(5);
-    let _ = foo();
-    println!("X = {}", x);
-}
diff --git a/src/test/ui/coercion/coercion-missing-tail-expected-type.stderr b/src/test/ui/coercion/coercion-missing-tail-expected-type.stderr
deleted file mode 100644
index 4c04bb11351..00000000000
--- a/src/test/ui/coercion/coercion-missing-tail-expected-type.stderr
+++ /dev/null
@@ -1,26 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coercion-missing-tail-expected-type.rs:4:24
-   |
-LL | fn plus_one(x: i32) -> i32 {
-   |    --------            ^^^ expected `i32`, found `()`
-   |    |
-   |    implicitly returns `()` as its body has no tail or `return` expression
-LL |     x + 1;
-   |          - help: remove this semicolon to return this value
-
-error[E0308]: mismatched types
-  --> $DIR/coercion-missing-tail-expected-type.rs:8:13
-   |
-LL | fn foo() -> Result<u8, u64> {
-   |    ---      ^^^^^^^^^^^^^^^ expected enum `Result`, found `()`
-   |    |
-   |    implicitly returns `()` as its body has no tail or `return` expression
-LL |     Ok(1);
-   |          - help: remove this semicolon to return this value
-   |
-   = note:   expected enum `Result<u8, u64>`
-           found unit type `()`
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/coercion-slice.rs b/src/test/ui/coercion/coercion-slice.rs
deleted file mode 100644
index b756c8f8203..00000000000
--- a/src/test/ui/coercion/coercion-slice.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-// Tests that we forbid coercion from `[T; n]` to `&[T]`
-
-fn main() {
-    let _: &[i32] = [0];
-    //~^ ERROR mismatched types
-    //~| expected `&[i32]`, found array `[{integer}; 1]`
-}
diff --git a/src/test/ui/coercion/coercion-slice.stderr b/src/test/ui/coercion/coercion-slice.stderr
deleted file mode 100644
index 42dc954ffd5..00000000000
--- a/src/test/ui/coercion/coercion-slice.stderr
+++ /dev/null
@@ -1,13 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/coercion-slice.rs:4:21
-   |
-LL |     let _: &[i32] = [0];
-   |            ------   ^^^
-   |            |        |
-   |            |        expected `&[i32]`, found array `[{integer}; 1]`
-   |            |        help: consider borrowing here: `&[0]`
-   |            expected due to this
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/issue-101066.rs b/src/test/ui/coercion/issue-101066.rs
deleted file mode 100644
index b658ed1e9ab..00000000000
--- a/src/test/ui/coercion/issue-101066.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-// check-pass
-
-use std::convert::TryFrom;
-
-pub trait FieldElement {
-    type Integer: TryFrom<usize, Error = std::num::TryFromIntError>;
-
-    fn valid_integer_try_from<N>(i: N) -> Result<Self::Integer, ()>
-    where
-        Self::Integer: TryFrom<N>,
-    {
-        Self::Integer::try_from(i).map_err(|_| ())
-    }
-}
-
-fn main() {}
diff --git a/src/test/ui/coercion/issue-14589.rs b/src/test/ui/coercion/issue-14589.rs
deleted file mode 100644
index d35ee5c731e..00000000000
--- a/src/test/ui/coercion/issue-14589.rs
+++ /dev/null
@@ -1,24 +0,0 @@
-// run-pass
-// All 3 expressions should work in that the argument gets
-// coerced to a trait object
-
-// pretty-expanded FIXME #23616
-
-fn main() {
-    send::<Box<dyn Foo>>(Box::new(Output(0)));
-    Test::<Box<dyn Foo>>::foo(Box::new(Output(0)));
-    Test::<Box<dyn Foo>>::new().send(Box::new(Output(0)));
-}
-
-fn send<T>(_: T) {}
-
-struct Test<T> { marker: std::marker::PhantomData<T> }
-impl<T> Test<T> {
-    fn new() -> Test<T> { Test { marker: ::std::marker::PhantomData } }
-    fn foo(_: T) {}
-    fn send(&self, _: T) {}
-}
-
-trait Foo { fn dummy(&self) { }}
-struct Output(#[allow(unused_tuple_struct_fields)] isize);
-impl Foo for Output {}
diff --git a/src/test/ui/coercion/issue-36007.rs b/src/test/ui/coercion/issue-36007.rs
deleted file mode 100644
index 78812df870d..00000000000
--- a/src/test/ui/coercion/issue-36007.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-// check-pass
-#![feature(coerce_unsized, unsize)]
-
-use std::marker::Unsize;
-use std::ops::CoerceUnsized;
-
-struct Foo<T: ?Sized>(Box<T>);
-
-impl<T> CoerceUnsized<Foo<dyn Baz>> for Foo<T> where T: Unsize<dyn Baz> {}
-
-struct Bar;
-
-trait Baz {}
-
-impl Baz for Bar {}
-
-fn main() {
-    let foo = Foo(Box::new(Bar));
-    let foobar: Foo<Bar> = foo;
-}
diff --git a/src/test/ui/coercion/issue-37655.rs b/src/test/ui/coercion/issue-37655.rs
deleted file mode 100644
index 416854d66f3..00000000000
--- a/src/test/ui/coercion/issue-37655.rs
+++ /dev/null
@@ -1,37 +0,0 @@
-// check-pass
-// Regression test for #37655. The problem was a false edge created by
-// coercion that wound up requiring that `'a` (in `split()`) outlive
-// `'b`, which shouldn't be necessary.
-
-#![allow(warnings)]
-
-trait SliceExt<T> {
-    type Item;
-
-    fn get_me<I>(&self, index: I) -> &I::Output
-        where I: SliceIndex<Self::Item>;
-}
-
-impl<T> SliceExt<T> for [T] {
-    type Item = T;
-
-    fn get_me<I>(&self, index: I) -> &I::Output
-        where I: SliceIndex<T>
-    {
-        panic!()
-    }
-}
-
-pub trait SliceIndex<T> {
-    type Output: ?Sized;
-}
-
-impl<T> SliceIndex<T> for usize {
-    type Output = T;
-}
-
-fn foo<'a, 'b>(split: &'b [&'a [u8]]) -> &'a [u8] {
-    split.get_me(0)
-}
-
-fn main() { }
diff --git a/src/test/ui/coercion/issue-39823.rs b/src/test/ui/coercion/issue-39823.rs
deleted file mode 100644
index 148cf527e7c..00000000000
--- a/src/test/ui/coercion/issue-39823.rs
+++ /dev/null
@@ -1,25 +0,0 @@
-// run-pass
-// aux-build:issue-39823.rs
-
-extern crate issue_39823;
-use issue_39823::{RemoteC, RemoteG};
-
-#[derive(Debug, PartialEq)]
-struct LocalC(u32);
-
-#[derive(Debug, PartialEq)]
-struct LocalG<T>(T);
-
-fn main() {
-    let virtual_localc : &dyn Fn(_) -> LocalC = &LocalC;
-    assert_eq!(virtual_localc(1), LocalC(1));
-
-    let virtual_localg : &dyn Fn(_) -> LocalG<u32> = &LocalG;
-    assert_eq!(virtual_localg(1), LocalG(1));
-
-    let virtual_remotec : &dyn Fn(_) -> RemoteC = &RemoteC;
-    assert_eq!(virtual_remotec(1), RemoteC(1));
-
-    let virtual_remoteg : &dyn Fn(_) -> RemoteG<u32> = &RemoteG;
-    assert_eq!(virtual_remoteg(1), RemoteG(1));
-}
diff --git a/src/test/ui/coercion/issue-53475.rs b/src/test/ui/coercion/issue-53475.rs
deleted file mode 100644
index 3770c024fb9..00000000000
--- a/src/test/ui/coercion/issue-53475.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-#![feature(coerce_unsized)]
-
-use std::any::Any;
-use std::ops::CoerceUnsized;
-
-struct Foo<T> {
-    data: Box<T>,
-}
-
-impl<T> CoerceUnsized<Foo<dyn Any>> for Foo<T> {}
-//~^ ERROR the parameter type `T` may not live long enough
-
-fn main() {}
diff --git a/src/test/ui/coercion/issue-53475.stderr b/src/test/ui/coercion/issue-53475.stderr
deleted file mode 100644
index 522c50dca95..00000000000
--- a/src/test/ui/coercion/issue-53475.stderr
+++ /dev/null
@@ -1,14 +0,0 @@
-error[E0310]: the parameter type `T` may not live long enough
-  --> $DIR/issue-53475.rs:10:1
-   |
-LL | impl<T> CoerceUnsized<Foo<dyn Any>> for Foo<T> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds
-   |
-help: consider adding an explicit lifetime bound...
-   |
-LL | impl<T: 'static> CoerceUnsized<Foo<dyn Any>> for Foo<T> {}
-   |       +++++++++
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0310`.
diff --git a/src/test/ui/coercion/issue-73886.rs b/src/test/ui/coercion/issue-73886.rs
deleted file mode 100644
index 9c0c87a5cf2..00000000000
--- a/src/test/ui/coercion/issue-73886.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-fn main() {
-    let _ = &&[0] as &[_];
-    //~^ ERROR non-primitive cast: `&&[i32; 1]` as `&[_]`
-    let _ = 7u32 as Option<_>;
-    //~^ ERROR non-primitive cast: `u32` as `Option<_>`
-}
diff --git a/src/test/ui/coercion/issue-73886.stderr b/src/test/ui/coercion/issue-73886.stderr
deleted file mode 100644
index a6f8ba65ab5..00000000000
--- a/src/test/ui/coercion/issue-73886.stderr
+++ /dev/null
@@ -1,17 +0,0 @@
-error[E0605]: non-primitive cast: `&&[i32; 1]` as `&[_]`
-  --> $DIR/issue-73886.rs:2:13
-   |
-LL |     let _ = &&[0] as &[_];
-   |             ^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
-
-error[E0605]: non-primitive cast: `u32` as `Option<_>`
-  --> $DIR/issue-73886.rs:4:13
-   |
-LL |     let _ = 7u32 as Option<_>;
-   |             ^^^^^^^^^^^^^^^^^ help: consider using the `From` trait instead: `Option<_>::from(7u32)`
-   |
-   = note: an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0605`.
diff --git a/src/test/ui/coercion/issue-88097.rs b/src/test/ui/coercion/issue-88097.rs
deleted file mode 100644
index e543e1bae92..00000000000
--- a/src/test/ui/coercion/issue-88097.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-// In #88097, the compiler attempted to coerce a closure type to itself via
-// a function pointer, which caused an unnecessary error. Check that this
-// behavior has been fixed.
-
-// check-pass
-
-fn peculiar() -> impl Fn(u8) -> u8 {
-    return |x| x + 1
-}
-
-fn peculiar2() -> impl Fn(u8) -> u8 {
-    return |x| x + 1;
-}
-
-fn peculiar3() -> impl Fn(u8) -> u8 {
-    let f = |x| x + 1;
-    return f
-}
-
-fn peculiar4() -> impl Fn(u8) -> u8 {
-    let f = |x| x + 1;
-    f
-}
-
-fn peculiar5() -> impl Fn(u8) -> u8 {
-    let f = |x| x + 1;
-    let g = |x| x + 2;
-    return if true { f } else { g }
-}
-
-fn main() {}
diff --git a/src/test/ui/coercion/retslot-cast.rs b/src/test/ui/coercion/retslot-cast.rs
deleted file mode 100644
index ae500cb15df..00000000000
--- a/src/test/ui/coercion/retslot-cast.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-#![allow(warnings)]
-
-pub fn fail(x: Option<&(Iterator<Item=()>+Send)>)
-            -> Option<&Iterator<Item=()>> {
-    // This call used to trigger an LLVM assertion because the return
-    // slot had type "Option<&Iterator>"* instead of
-    // "Option<&(Iterator+Send)>"* -- but this now yields a
-    // compilation error and I'm not sure how to create a comparable
-    // test. To ensure that this PARTICULAR failure doesn't occur
-    // again, though, I've left this test here, so if this ever starts
-    // to compile again, we can adjust the test appropriately (clearly
-    // it should never ICE...). -nmatsakis
-    inner(x) //~ ERROR mismatched types
-}
-
-pub fn inner(x: Option<&(Iterator<Item=()>+Send)>)
-             -> Option<&(Iterator<Item=()>+Send)> {
-    x
-}
-
-
-fn main() {}
diff --git a/src/test/ui/coercion/retslot-cast.stderr b/src/test/ui/coercion/retslot-cast.stderr
deleted file mode 100644
index 798ce1199a9..00000000000
--- a/src/test/ui/coercion/retslot-cast.stderr
+++ /dev/null
@@ -1,15 +0,0 @@
-error[E0308]: mismatched types
-  --> $DIR/retslot-cast.rs:13:5
-   |
-LL |             -> Option<&Iterator<Item=()>> {
-   |                -------------------------- expected `Option<&dyn Iterator<Item = ()>>` because of return type
-...
-LL |     inner(x)
-   |     ^^^^^^^^ expected trait `Iterator<Item = ()>`, found trait `Iterator<Item = ()> + Send`
-   |
-   = note: expected enum `Option<&dyn Iterator<Item = ()>>`
-              found enum `Option<&dyn Iterator<Item = ()> + Send>`
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/coercion/unsafe-coercion.rs b/src/test/ui/coercion/unsafe-coercion.rs
deleted file mode 100644
index 2478deeab0d..00000000000
--- a/src/test/ui/coercion/unsafe-coercion.rs
+++ /dev/null
@@ -1,17 +0,0 @@
-// run-pass
-// Check that safe fns are not a subtype of unsafe fns.
-
-
-fn foo(x: i32) -> i32 {
-    x * 22
-}
-
-fn bar(x: fn(i32) -> i32) -> unsafe fn(i32) -> i32 {
-    x // OK, coercion!
-}
-
-fn main() {
-    let f = bar(foo);
-    let x = unsafe { f(2) };
-    assert_eq!(x, 44);
-}