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-rw-r--r--src/test/compile-fail/consts/const-fn-error.rs2
-rw-r--r--src/test/ui/async-await/no-const-async.rs1
-rw-r--r--src/test/ui/async-await/no-const-async.stderr12
-rw-r--r--src/test/ui/check-static-values-constraints.rs7
-rw-r--r--src/test/ui/check-static-values-constraints.stderr76
-rw-r--r--src/test/ui/const-suggest-feature.rs2
-rw-r--r--src/test/ui/const-suggest-feature.stderr13
-rw-r--r--src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs4
-rw-r--r--src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr8
-rw-r--r--src/test/ui/consts/const-eval/mod-static-with-const-fn.rs7
-rw-r--r--src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr16
-rw-r--r--src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.rs1
-rw-r--r--src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.stderr15
-rw-r--r--src/test/ui/consts/const_let_assign3.rs8
-rw-r--r--src/test/ui/consts/const_let_assign3.stderr14
-rw-r--r--src/test/ui/consts/inline_asm.rs2
-rw-r--r--src/test/ui/consts/inline_asm.stderr4
-rw-r--r--src/test/ui/consts/min_const_fn/allow_const_fn_ptr.stderr5
-rw-r--r--src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.rs1
-rw-r--r--src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.stderr13
-rw-r--r--src/test/ui/consts/min_const_fn/cast_errors.rs4
-rw-r--r--src/test/ui/consts/min_const_fn/cast_errors.stderr52
-rw-r--r--src/test/ui/consts/min_const_fn/cmp_fn_pointers.rs5
-rw-r--r--src/test/ui/consts/min_const_fn/cmp_fn_pointers.stderr19
-rw-r--r--src/test/ui/consts/min_const_fn/min_const_fn.rs21
-rw-r--r--src/test/ui/consts/min_const_fn/min_const_fn.stderr169
-rw-r--r--src/test/ui/consts/min_const_fn/min_const_fn_dyn.rs2
-rw-r--r--src/test/ui/consts/min_const_fn/min_const_fn_dyn.stderr2
-rw-r--r--src/test/ui/consts/min_const_fn/min_const_fn_fn_ptr.stderr2
-rw-r--r--src/test/ui/consts/min_const_fn/min_const_fn_libstd_stability.stderr5
-rw-r--r--src/test/ui/consts/min_const_fn/min_const_unsafe_fn_libstd_stability.stderr5
-rw-r--r--src/test/ui/consts/min_const_fn/mutable_borrow.stderr8
-rw-r--r--src/test/ui/consts/projection_qualif.rs1
-rw-r--r--src/test/ui/consts/projection_qualif.stock.stderr14
-rw-r--r--src/test/ui/consts/static_mut_containing_mut_ref2.rs1
-rw-r--r--src/test/ui/consts/static_mut_containing_mut_ref2.stock.stderr13
-rw-r--r--src/test/ui/error-codes/E0010-teach.rs1
-rw-r--r--src/test/ui/error-codes/E0010-teach.stderr15
-rw-r--r--src/test/ui/error-codes/E0010.rs1
-rw-r--r--src/test/ui/error-codes/E0010.stderr13
-rw-r--r--src/test/ui/error-codes/E0017.rs2
-rw-r--r--src/test/ui/error-codes/E0017.stderr14
-rw-r--r--src/test/ui/error-codes/E0388.rs4
-rw-r--r--src/test/ui/error-codes/E0388.stderr14
-rw-r--r--src/test/ui/issues/issue-7364.rs1
-rw-r--r--src/test/ui/issues/issue-7364.stderr12
-rw-r--r--src/test/ui/parser/fn-header-semantic-fail.rs3
-rw-r--r--src/test/ui/parser/fn-header-semantic-fail.stderr64
-rw-r--r--src/test/ui/static/static-mut-not-constant.rs1
-rw-r--r--src/test/ui/static/static-mut-not-constant.stderr13
-rw-r--r--src/test/ui/unsafe/ranged_ints2_const.stderr8
51 files changed, 345 insertions, 355 deletions
diff --git a/src/test/compile-fail/consts/const-fn-error.rs b/src/test/compile-fail/consts/const-fn-error.rs
index 64474878603..68a4d414ff3 100644
--- a/src/test/compile-fail/consts/const-fn-error.rs
+++ b/src/test/compile-fail/consts/const-fn-error.rs
@@ -6,6 +6,8 @@ const fn f(x: usize) -> usize {
     let mut sum = 0;
     for i in 0..x {
         //~^ ERROR mutable references
+        //~| ERROR calls in constant functions
+        //~| ERROR calls in constant functions
         //~| ERROR E0080
         //~| ERROR E0744
         sum += i;
diff --git a/src/test/ui/async-await/no-const-async.rs b/src/test/ui/async-await/no-const-async.rs
index 57a9f175ca3..b3c59734e03 100644
--- a/src/test/ui/async-await/no-const-async.rs
+++ b/src/test/ui/async-await/no-const-async.rs
@@ -3,4 +3,3 @@
 
 pub const async fn x() {}
 //~^ ERROR functions cannot be both `const` and `async`
-//~| ERROR `impl Trait` in const fn is unstable
diff --git a/src/test/ui/async-await/no-const-async.stderr b/src/test/ui/async-await/no-const-async.stderr
index 4e59bb50767..90ec646c8c0 100644
--- a/src/test/ui/async-await/no-const-async.stderr
+++ b/src/test/ui/async-await/no-const-async.stderr
@@ -7,15 +7,5 @@ LL | pub const async fn x() {}
    |     |     `async` because of this
    |     `const` because of this
 
-error[E0723]: `impl Trait` in const fn is unstable
-  --> $DIR/no-const-async.rs:4:24
-   |
-LL | pub const async fn x() {}
-   |                        ^
-   |
-   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
-   = help: add `#![feature(const_fn)]` to the crate attributes to enable
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
-For more information about this error, try `rustc --explain E0723`.
diff --git a/src/test/ui/check-static-values-constraints.rs b/src/test/ui/check-static-values-constraints.rs
index acfb3b5e44b..3d1b5a08227 100644
--- a/src/test/ui/check-static-values-constraints.rs
+++ b/src/test/ui/check-static-values-constraints.rs
@@ -78,7 +78,6 @@ struct MyOwned;
 
 static STATIC11: Box<MyOwned> = box MyOwned;
 //~^ ERROR allocations are not allowed in statics
-//~| ERROR static contains unimplemented expression type
 
 static mut STATIC12: UnsafeStruct = UnsafeStruct;
 
@@ -93,16 +92,12 @@ static mut STATIC14: SafeStruct = SafeStruct {
 
 static STATIC15: &'static [Box<MyOwned>] = &[
     box MyOwned, //~ ERROR allocations are not allowed in statics
-    //~| ERROR contains unimplemented expression
     box MyOwned, //~ ERROR allocations are not allowed in statics
-    //~| ERROR contains unimplemented expression
 ];
 
 static STATIC16: (&'static Box<MyOwned>, &'static Box<MyOwned>) = (
     &box MyOwned, //~ ERROR allocations are not allowed in statics
-    //~| ERROR contains unimplemented expression
     &box MyOwned, //~ ERROR allocations are not allowed in statics
-    //~| ERROR contains unimplemented expression
 );
 
 static mut STATIC17: SafeEnum = SafeEnum::Variant1;
@@ -110,11 +105,9 @@ static mut STATIC17: SafeEnum = SafeEnum::Variant1;
 static STATIC19: Box<isize> =
     box 3;
 //~^ ERROR allocations are not allowed in statics
-    //~| ERROR contains unimplemented expression
 
 pub fn main() {
     let y = { static x: Box<isize> = box 3; x };
     //~^ ERROR allocations are not allowed in statics
     //~| ERROR cannot move out of static item
-    //~| ERROR contains unimplemented expression
 }
diff --git a/src/test/ui/check-static-values-constraints.stderr b/src/test/ui/check-static-values-constraints.stderr
index 50c1b5088e7..eb640c88e02 100644
--- a/src/test/ui/check-static-values-constraints.stderr
+++ b/src/test/ui/check-static-values-constraints.stderr
@@ -15,92 +15,44 @@ error[E0010]: allocations are not allowed in statics
 LL | static STATIC11: Box<MyOwned> = box MyOwned;
    |                                 ^^^^^^^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/check-static-values-constraints.rs:79:37
-   |
-LL | static STATIC11: Box<MyOwned> = box MyOwned;
-   |                                     ^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants
-  --> $DIR/check-static-values-constraints.rs:90:32
+  --> $DIR/check-static-values-constraints.rs:89:32
    |
 LL |     field2: SafeEnum::Variant4("str".to_string())
    |                                ^^^^^^^^^^^^^^^^^
 
 error[E0010]: allocations are not allowed in statics
-  --> $DIR/check-static-values-constraints.rs:95:5
+  --> $DIR/check-static-values-constraints.rs:94:5
    |
 LL |     box MyOwned,
    |     ^^^^^^^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/check-static-values-constraints.rs:95:9
-   |
-LL |     box MyOwned,
-   |         ^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0010]: allocations are not allowed in statics
-  --> $DIR/check-static-values-constraints.rs:97:5
+  --> $DIR/check-static-values-constraints.rs:95:5
    |
 LL |     box MyOwned,
    |     ^^^^^^^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/check-static-values-constraints.rs:97:9
-   |
-LL |     box MyOwned,
-   |         ^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0010]: allocations are not allowed in statics
-  --> $DIR/check-static-values-constraints.rs:102:6
+  --> $DIR/check-static-values-constraints.rs:99:6
    |
 LL |     &box MyOwned,
    |      ^^^^^^^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/check-static-values-constraints.rs:102:10
-   |
-LL |     &box MyOwned,
-   |          ^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0010]: allocations are not allowed in statics
-  --> $DIR/check-static-values-constraints.rs:104:6
+  --> $DIR/check-static-values-constraints.rs:100:6
    |
 LL |     &box MyOwned,
    |      ^^^^^^^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/check-static-values-constraints.rs:104:10
-   |
-LL |     &box MyOwned,
-   |          ^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0010]: allocations are not allowed in statics
-  --> $DIR/check-static-values-constraints.rs:111:5
+  --> $DIR/check-static-values-constraints.rs:106:5
    |
 LL |     box 3;
    |     ^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/check-static-values-constraints.rs:111:9
-   |
-LL |     box 3;
-   |         ^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0507]: cannot move out of static item `x`
-  --> $DIR/check-static-values-constraints.rs:116:45
+  --> $DIR/check-static-values-constraints.rs:110:45
    |
 LL |     let y = { static x: Box<isize> = box 3; x };
    |                                             ^
@@ -109,20 +61,12 @@ LL |     let y = { static x: Box<isize> = box 3; x };
    |                                             help: consider borrowing here: `&x`
 
 error[E0010]: allocations are not allowed in statics
-  --> $DIR/check-static-values-constraints.rs:116:38
+  --> $DIR/check-static-values-constraints.rs:110:38
    |
 LL |     let y = { static x: Box<isize> = box 3; x };
    |                                      ^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/check-static-values-constraints.rs:116:42
-   |
-LL |     let y = { static x: Box<isize> = box 3; x };
-   |                                          ^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
-error: aborting due to 17 previous errors
+error: aborting due to 10 previous errors
 
-Some errors have detailed explanations: E0010, E0015, E0019, E0493, E0507.
+Some errors have detailed explanations: E0010, E0015, E0493, E0507.
 For more information about an error, try `rustc --explain E0010`.
diff --git a/src/test/ui/const-suggest-feature.rs b/src/test/ui/const-suggest-feature.rs
index 89fafbbe6f0..d11b91edb88 100644
--- a/src/test/ui/const-suggest-feature.rs
+++ b/src/test/ui/const-suggest-feature.rs
@@ -2,8 +2,6 @@ const WRITE: () = unsafe {
     *std::ptr::null_mut() = 0;
     //~^ ERROR dereferencing raw pointers in constants is unstable
     //~| HELP add `#![feature(const_raw_ptr_deref)]` to the crate attributes to enable
-    //~| ERROR constant contains unimplemented expression type
-    //~| HELP add `#![feature(const_mut_refs)]` to the crate attributes to enable
 };
 
 fn main() {}
diff --git a/src/test/ui/const-suggest-feature.stderr b/src/test/ui/const-suggest-feature.stderr
index 6b91df6b42d..1ccc3d754ff 100644
--- a/src/test/ui/const-suggest-feature.stderr
+++ b/src/test/ui/const-suggest-feature.stderr
@@ -7,15 +7,6 @@ LL |     *std::ptr::null_mut() = 0;
    = note: see issue #51911 <https://github.com/rust-lang/rust/issues/51911> for more information
    = help: add `#![feature(const_raw_ptr_deref)]` to the crate attributes to enable
 
-error[E0019]: constant contains unimplemented expression type
-  --> $DIR/const-suggest-feature.rs:2:5
-   |
-LL |     *std::ptr::null_mut() = 0;
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
-Some errors have detailed explanations: E0019, E0658.
-For more information about an error, try `rustc --explain E0019`.
+For more information about this error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs
index 4d3c714481a..037c6f9f7e6 100644
--- a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs
+++ b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.rs
@@ -1,7 +1,7 @@
 // New test for #53818: modifying static memory at compile-time is not allowed.
 // The test should never compile successfully
 
-#![feature(const_raw_ptr_deref)]
+#![feature(const_raw_ptr_deref, const_mut_refs)]
 
 use std::cell::UnsafeCell;
 
@@ -13,7 +13,7 @@ unsafe impl Sync for Foo {}
 static FOO: Foo = Foo(UnsafeCell::new(42));
 
 static BAR: () = unsafe {
-    *FOO.0.get() = 5; //~ ERROR contains unimplemented expression type
+    *FOO.0.get() = 5; //~ ERROR
 };
 
 fn main() {}
diff --git a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr
index 14dcc074639..296a6bf5421 100644
--- a/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr
+++ b/src/test/ui/consts/const-eval/assign-to-static-within-other-static-2.stderr
@@ -1,11 +1,9 @@
-error[E0019]: static contains unimplemented expression type
+error[E0080]: could not evaluate static initializer
   --> $DIR/assign-to-static-within-other-static-2.rs:16:5
    |
 LL |     *FOO.0.get() = 5;
-   |     ^^^^^^^^^^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+   |     ^^^^^^^^^^^^^^^^ modifying a static's initial value from another static's initializer
 
 error: aborting due to previous error
 
-For more information about this error, try `rustc --explain E0019`.
+For more information about this error, try `rustc --explain E0080`.
diff --git a/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs b/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs
index 32f0062168b..481e0469463 100644
--- a/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs
+++ b/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs
@@ -12,14 +12,9 @@ unsafe impl Sync for Foo {}
 
 static FOO: Foo = Foo(UnsafeCell::new(42));
 
-fn foo() {}
-
 static BAR: () = unsafe {
     *FOO.0.get() = 5;
-    //~^ contains unimplemented expression
-
-    foo();
-    //~^ ERROR calls in statics are limited to constant functions, tuple structs and tuple variants
+    //~^ mutation through a reference
 };
 
 fn main() {
diff --git a/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr b/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr
index 44ae1ecf047..38282c0e300 100644
--- a/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr
+++ b/src/test/ui/consts/const-eval/mod-static-with-const-fn.stderr
@@ -1,18 +1,12 @@
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/mod-static-with-const-fn.rs:18:5
+error[E0658]: mutation through a reference is not allowed in statics
+  --> $DIR/mod-static-with-const-fn.rs:16:5
    |
 LL |     *FOO.0.get() = 5;
    |     ^^^^^^^^^^^^^^^^
    |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
-error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants
-  --> $DIR/mod-static-with-const-fn.rs:21:5
-   |
-LL |     foo();
-   |     ^^^^^
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
-Some errors have detailed explanations: E0015, E0019.
-For more information about an error, try `rustc --explain E0015`.
+For more information about this error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.rs b/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.rs
index 8642954a75b..645a957949c 100644
--- a/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.rs
+++ b/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.rs
@@ -3,6 +3,7 @@
 const extern fn unsize(x: &[u8; 3]) -> &[u8] { x }
 const unsafe extern "C" fn closure() -> fn() { || {} }
 //~^ ERROR function pointer
+//~| ERROR function pointer cast
 const unsafe extern fn use_float() { 1.0 + 1.0; }
 //~^ ERROR floating point arithmetic
 const extern "C" fn ptr_cast(val: *const u8) { val as usize; }
diff --git a/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.stderr b/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.stderr
index 455a822e2d0..694e2290808 100644
--- a/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.stderr
+++ b/src/test/ui/consts/const-extern-fn/const-extern-fn-min-const-fn.stderr
@@ -7,8 +7,17 @@ LL | const unsafe extern "C" fn closure() -> fn() { || {} }
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
+error[E0658]: function pointer casts are not allowed in constant functions
+  --> $DIR/const-extern-fn-min-const-fn.rs:4:48
+   |
+LL | const unsafe extern "C" fn closure() -> fn() { || {} }
+   |                                                ^^^^^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
+
 error[E0658]: floating point arithmetic is not allowed in constant functions
-  --> $DIR/const-extern-fn-min-const-fn.rs:6:38
+  --> $DIR/const-extern-fn-min-const-fn.rs:7:38
    |
 LL | const unsafe extern fn use_float() { 1.0 + 1.0; }
    |                                      ^^^^^^^^^
@@ -17,7 +26,7 @@ LL | const unsafe extern fn use_float() { 1.0 + 1.0; }
    = help: add `#![feature(const_fn_floating_point_arithmetic)]` to the crate attributes to enable
 
 error[E0658]: casting pointers to integers in constant functions is unstable
-  --> $DIR/const-extern-fn-min-const-fn.rs:8:48
+  --> $DIR/const-extern-fn-min-const-fn.rs:9:48
    |
 LL | const extern "C" fn ptr_cast(val: *const u8) { val as usize; }
    |                                                ^^^^^^^^^^^^
@@ -25,6 +34,6 @@ LL | const extern "C" fn ptr_cast(val: *const u8) { val as usize; }
    = note: see issue #51910 <https://github.com/rust-lang/rust/issues/51910> for more information
    = help: add `#![feature(const_raw_ptr_to_usize_cast)]` to the crate attributes to enable
 
-error: aborting due to 3 previous errors
+error: aborting due to 4 previous errors
 
 For more information about this error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/const_let_assign3.rs b/src/test/ui/consts/const_let_assign3.rs
index 9d5ccb880aa..2fd6e060678 100644
--- a/src/test/ui/consts/const_let_assign3.rs
+++ b/src/test/ui/consts/const_let_assign3.rs
@@ -6,23 +6,21 @@ struct S {
 
 impl S {
     const fn foo(&mut self, x: u32) {
-        //~^ ERROR mutable references
+        //~^ ERROR mutable reference
         self.state = x;
     }
 }
 
 const FOO: S = {
     let mut s = S { state: 42 };
-    s.foo(3); //~ ERROR mutable references are not allowed in constants
+    s.foo(3); //~ ERROR mutable reference
     s
 };
 
 type Array = [u32; {
     let mut x = 2;
-    let y = &mut x;
-//~^ ERROR mutable references are not allowed in constants
+    let y = &mut x; //~ ERROR mutable reference
     *y = 42;
-//~^ ERROR constant contains unimplemented expression type
     *y
 }];
 
diff --git a/src/test/ui/consts/const_let_assign3.stderr b/src/test/ui/consts/const_let_assign3.stderr
index 15badea0037..dc86e178a42 100644
--- a/src/test/ui/consts/const_let_assign3.stderr
+++ b/src/test/ui/consts/const_let_assign3.stderr
@@ -19,15 +19,7 @@ error[E0764]: mutable references are not allowed in constants
 LL |     let y = &mut x;
    |             ^^^^^^ `&mut` is only allowed in `const fn`
 
-error[E0019]: constant contains unimplemented expression type
-  --> $DIR/const_let_assign3.rs:24:5
-   |
-LL |     *y = 42;
-   |     ^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
-error: aborting due to 4 previous errors
+error: aborting due to 3 previous errors
 
-Some errors have detailed explanations: E0019, E0658, E0764.
-For more information about an error, try `rustc --explain E0019`.
+Some errors have detailed explanations: E0658, E0764.
+For more information about an error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/inline_asm.rs b/src/test/ui/consts/inline_asm.rs
index c2ab97e54f0..b8b755018e6 100644
--- a/src/test/ui/consts/inline_asm.rs
+++ b/src/test/ui/consts/inline_asm.rs
@@ -1,6 +1,6 @@
 #![feature(llvm_asm)]
 
 const _: () = unsafe { llvm_asm!("nop") };
-//~^ ERROR contains unimplemented expression type
+//~^ ERROR inline assembly
 
 fn main() {}
diff --git a/src/test/ui/consts/inline_asm.stderr b/src/test/ui/consts/inline_asm.stderr
index 0a064c81366..6fb6b69d220 100644
--- a/src/test/ui/consts/inline_asm.stderr
+++ b/src/test/ui/consts/inline_asm.stderr
@@ -1,4 +1,4 @@
-error[E0019]: constant contains unimplemented expression type
+error[E0015]: inline assembly is not allowed in constants
   --> $DIR/inline_asm.rs:3:24
    |
 LL | const _: () = unsafe { llvm_asm!("nop") };
@@ -8,4 +8,4 @@ LL | const _: () = unsafe { llvm_asm!("nop") };
 
 error: aborting due to previous error
 
-For more information about this error, try `rustc --explain E0019`.
+For more information about this error, try `rustc --explain E0015`.
diff --git a/src/test/ui/consts/min_const_fn/allow_const_fn_ptr.stderr b/src/test/ui/consts/min_const_fn/allow_const_fn_ptr.stderr
index 94f6cda2097..a08d57b6043 100644
--- a/src/test/ui/consts/min_const_fn/allow_const_fn_ptr.stderr
+++ b/src/test/ui/consts/min_const_fn/allow_const_fn_ptr.stderr
@@ -4,11 +4,14 @@ error: const-stable function cannot use `#[feature(const_fn_fn_ptr_basics)]`
 LL | const fn error(_: fn()) {}
    |                ^
    |
-   = note: otherwise `#[allow_internal_unstable]` can be used to bypass stability checks
 help: if it is not part of the public API, make this function unstably const
    |
 LL | #[rustc_const_unstable(feature = "...", issue = "...")]
    |
+help: otherwise `#[allow_internal_unstable]` can be used to bypass stability checks
+   |
+LL | #[allow_internal_unstable(const_fn_fn_ptr_basics)]
+   |
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.rs b/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.rs
index 589085871fb..4e1b7bf119c 100644
--- a/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.rs
+++ b/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.rs
@@ -1,7 +1,6 @@
 const fn foo(a: i32) -> Vec<i32> {
     vec![1, 2, 3]
     //~^ ERROR allocations are not allowed
-    //~| ERROR unimplemented expression type
     //~| ERROR calls in constant functions
 }
 
diff --git a/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.stderr b/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.stderr
index 0f16890141f..23697a8e118 100644
--- a/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.stderr
+++ b/src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.stderr
@@ -6,15 +6,6 @@ LL |     vec![1, 2, 3]
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
-error[E0019]: constant function contains unimplemented expression type
-  --> $DIR/bad_const_fn_body_ice.rs:2:5
-   |
-LL |     vec![1, 2, 3]
-   |     ^^^^^^^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
 error[E0015]: calls in constant functions are limited to constant functions, tuple structs and tuple variants
   --> $DIR/bad_const_fn_body_ice.rs:2:5
    |
@@ -23,7 +14,7 @@ LL |     vec![1, 2, 3]
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
-Some errors have detailed explanations: E0010, E0015, E0019.
+Some errors have detailed explanations: E0010, E0015.
 For more information about an error, try `rustc --explain E0010`.
diff --git a/src/test/ui/consts/min_const_fn/cast_errors.rs b/src/test/ui/consts/min_const_fn/cast_errors.rs
index 43ef8ea12eb..b68f47f5cbc 100644
--- a/src/test/ui/consts/min_const_fn/cast_errors.rs
+++ b/src/test/ui/consts/min_const_fn/cast_errors.rs
@@ -3,11 +3,15 @@ fn main() {}
 const fn unsize(x: &[u8; 3]) -> &[u8] { x }
 const fn closure() -> fn() { || {} }
 //~^ ERROR function pointer
+//~| ERROR function pointer cast
 const fn closure2() {
     (|| {}) as fn();
 //~^ ERROR function pointer
 }
 const fn reify(f: fn()) -> unsafe fn() { f }
 //~^ ERROR function pointer
+//~| ERROR function pointer
+//~| ERROR function pointer cast
 const fn reify2() { main as unsafe fn(); }
 //~^ ERROR function pointer
+//~| ERROR function pointer cast
diff --git a/src/test/ui/consts/min_const_fn/cast_errors.stderr b/src/test/ui/consts/min_const_fn/cast_errors.stderr
index ac77c181afd..fb962bdf906 100644
--- a/src/test/ui/consts/min_const_fn/cast_errors.stderr
+++ b/src/test/ui/consts/min_const_fn/cast_errors.stderr
@@ -7,33 +7,69 @@ LL | const fn closure() -> fn() { || {} }
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
-error[E0658]: function pointers cannot appear in constant functions
-  --> $DIR/cast_errors.rs:7:5
+error[E0658]: function pointer casts are not allowed in constant functions
+  --> $DIR/cast_errors.rs:4:30
+   |
+LL | const fn closure() -> fn() { || {} }
+   |                              ^^^^^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
+
+error[E0658]: function pointer casts are not allowed in constant functions
+  --> $DIR/cast_errors.rs:8:5
    |
 LL |     (|| {}) as fn();
-   |     ^^^^^^^^^^^^^^^
+   |     ^^^^^^^
    |
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
 error[E0658]: function pointers cannot appear in constant functions
-  --> $DIR/cast_errors.rs:10:28
+  --> $DIR/cast_errors.rs:11:16
    |
 LL | const fn reify(f: fn()) -> unsafe fn() { f }
-   |                            ^^^^^^^^^^^
+   |                ^
    |
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
 error[E0658]: function pointers cannot appear in constant functions
-  --> $DIR/cast_errors.rs:12:21
+  --> $DIR/cast_errors.rs:11:28
+   |
+LL | const fn reify(f: fn()) -> unsafe fn() { f }
+   |                            ^^^^^^^^^^^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
+
+error[E0658]: function pointer casts are not allowed in constant functions
+  --> $DIR/cast_errors.rs:11:42
+   |
+LL | const fn reify(f: fn()) -> unsafe fn() { f }
+   |                                          ^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
+
+error[E0658]: function pointer casts are not allowed in constant functions
+  --> $DIR/cast_errors.rs:15:21
+   |
+LL | const fn reify2() { main as unsafe fn(); }
+   |                     ^^^^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
+
+error[E0658]: function pointer casts are not allowed in constant functions
+  --> $DIR/cast_errors.rs:15:21
    |
 LL | const fn reify2() { main as unsafe fn(); }
-   |                     ^^^^^^^^^^^^^^^^^^^
+   |                     ^^^^
    |
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
-error: aborting due to 4 previous errors
+error: aborting due to 8 previous errors
 
 For more information about this error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/min_const_fn/cmp_fn_pointers.rs b/src/test/ui/consts/min_const_fn/cmp_fn_pointers.rs
index 4aaf7b86e45..638ff1d8b9c 100644
--- a/src/test/ui/consts/min_const_fn/cmp_fn_pointers.rs
+++ b/src/test/ui/consts/min_const_fn/cmp_fn_pointers.rs
@@ -1,5 +1,8 @@
-const fn cmp(x: fn(), y: fn()) -> bool { //~ ERROR function pointer
+const fn cmp(x: fn(), y: fn()) -> bool {
+    //~^ ERROR function pointer
+    //~| ERROR function pointer
     unsafe { x == y }
+    //~^ ERROR pointers cannot be reliably compared
 }
 
 fn main() {}
diff --git a/src/test/ui/consts/min_const_fn/cmp_fn_pointers.stderr b/src/test/ui/consts/min_const_fn/cmp_fn_pointers.stderr
index e913b187fee..04c2febeb97 100644
--- a/src/test/ui/consts/min_const_fn/cmp_fn_pointers.stderr
+++ b/src/test/ui/consts/min_const_fn/cmp_fn_pointers.stderr
@@ -7,6 +7,23 @@ LL | const fn cmp(x: fn(), y: fn()) -> bool {
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
-error: aborting due to previous error
+error[E0658]: function pointers cannot appear in constant functions
+  --> $DIR/cmp_fn_pointers.rs:1:23
+   |
+LL | const fn cmp(x: fn(), y: fn()) -> bool {
+   |                       ^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
+
+error: pointers cannot be reliably compared during const eval.
+  --> $DIR/cmp_fn_pointers.rs:4:14
+   |
+LL |     unsafe { x == y }
+   |              ^^^^^^
+   |
+   = note: see issue #53020 <https://github.com/rust-lang/rust/issues/53020> for more information
+
+error: aborting due to 3 previous errors
 
 For more information about this error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/min_const_fn/min_const_fn.rs b/src/test/ui/consts/min_const_fn/min_const_fn.rs
index 06a44b27106..e46127c36bf 100644
--- a/src/test/ui/consts/min_const_fn/min_const_fn.rs
+++ b/src/test/ui/consts/min_const_fn/min_const_fn.rs
@@ -38,6 +38,8 @@ impl<T> Foo<T> {
     const fn get(&self) -> &T { &self.0 }
     const fn get_mut(&mut self) -> &mut T { &mut self.0 }
     //~^ mutable references
+    //~| mutable references
+    //~| mutable references
 }
 impl<'a, T> Foo<T> {
     const fn new_lt(t: T) -> Self { Foo(t) }
@@ -45,6 +47,8 @@ impl<'a, T> Foo<T> {
     const fn get_lt(&'a self) -> &T { &self.0 }
     const fn get_mut_lt(&'a mut self) -> &mut T { &mut self.0 }
     //~^ mutable references
+    //~| mutable references
+    //~| mutable references
 }
 impl<T: Sized> Foo<T> {
     const fn new_s(t: T) -> Self { Foo(t) }
@@ -52,11 +56,15 @@ impl<T: Sized> Foo<T> {
     const fn get_s(&self) -> &T { &self.0 }
     const fn get_mut_s(&mut self) -> &mut T { &mut self.0 }
     //~^ mutable references
+    //~| mutable references
+    //~| mutable references
 }
 impl<T: ?Sized> Foo<T> {
     const fn get_sq(&self) -> &T { &self.0 }
     const fn get_mut_sq(&mut self) -> &mut T { &mut self.0 }
     //~^ mutable references
+    //~| mutable references
+    //~| mutable references
 }
 
 
@@ -117,17 +125,24 @@ impl<T: Sync + Sized> Foo<T> {
 struct AlanTuring<T>(T);
 const fn no_apit2(_x: AlanTuring<impl std::fmt::Debug>) {}
 //~^ ERROR trait bounds other than `Sized`
-const fn no_apit(_x: impl std::fmt::Debug) {} //~ ERROR trait bounds other than `Sized`
-const fn no_dyn_trait(_x: &dyn std::fmt::Debug) {} //~ ERROR trait bounds other than `Sized`
+//~| ERROR destructor
+const fn no_apit(_x: impl std::fmt::Debug) {}
+//~^ ERROR trait bounds other than `Sized`
+//~| ERROR destructor
+const fn no_dyn_trait(_x: &dyn std::fmt::Debug) {}
+//~^ ERROR trait bounds other than `Sized`
 const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
 //~^ ERROR trait bounds other than `Sized`
+//~| ERROR unsizing cast
+//~| ERROR unsizing cast
 
 const fn no_unsafe() { unsafe {} }
 
 const fn really_no_traits_i_mean_it() { (&() as &dyn std::fmt::Debug, ()).1 }
-//~^ ERROR trait bounds other than `Sized`
+//~^ ERROR unsizing cast
 
 const fn no_fn_ptrs(_x: fn()) {}
 //~^ ERROR function pointer
 const fn no_fn_ptrs2() -> fn() { fn foo() {} foo }
 //~^ ERROR function pointer
+//~| ERROR function pointer cast
diff --git a/src/test/ui/consts/min_const_fn/min_const_fn.stderr b/src/test/ui/consts/min_const_fn/min_const_fn.stderr
index 5e6bf7ef890..ee5434b147b 100644
--- a/src/test/ui/consts/min_const_fn/min_const_fn.stderr
+++ b/src/test/ui/consts/min_const_fn/min_const_fn.stderr
@@ -7,6 +7,15 @@ LL |     const fn into_inner(self) -> T { self.0 }
    |                         constant functions cannot evaluate destructors
 
 error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:39:22
+   |
+LL |     const fn get_mut(&mut self) -> &mut T { &mut self.0 }
+   |                      ^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
+error[E0658]: mutable references are not allowed in constant functions
   --> $DIR/min_const_fn.rs:39:36
    |
 LL |     const fn get_mut(&mut self) -> &mut T { &mut self.0 }
@@ -15,8 +24,17 @@ LL |     const fn get_mut(&mut self) -> &mut T { &mut self.0 }
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
+error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:39:45
+   |
+LL |     const fn get_mut(&mut self) -> &mut T { &mut self.0 }
+   |                                             ^^^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
 error[E0493]: destructors cannot be evaluated at compile-time
-  --> $DIR/min_const_fn.rs:44:28
+  --> $DIR/min_const_fn.rs:46:28
    |
 LL |     const fn into_inner_lt(self) -> T { self.0 }
    |                            ^^^^                - value is dropped here
@@ -24,7 +42,16 @@ LL |     const fn into_inner_lt(self) -> T { self.0 }
    |                            constant functions cannot evaluate destructors
 
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/min_const_fn.rs:46:42
+  --> $DIR/min_const_fn.rs:48:25
+   |
+LL |     const fn get_mut_lt(&'a mut self) -> &mut T { &mut self.0 }
+   |                         ^^^^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
+error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:48:42
    |
 LL |     const fn get_mut_lt(&'a mut self) -> &mut T { &mut self.0 }
    |                                          ^^^^^^
@@ -32,8 +59,17 @@ LL |     const fn get_mut_lt(&'a mut self) -> &mut T { &mut self.0 }
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
+error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:48:51
+   |
+LL |     const fn get_mut_lt(&'a mut self) -> &mut T { &mut self.0 }
+   |                                                   ^^^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
 error[E0493]: destructors cannot be evaluated at compile-time
-  --> $DIR/min_const_fn.rs:51:27
+  --> $DIR/min_const_fn.rs:55:27
    |
 LL |     const fn into_inner_s(self) -> T { self.0 }
    |                           ^^^^                - value is dropped here
@@ -41,7 +77,16 @@ LL |     const fn into_inner_s(self) -> T { self.0 }
    |                           constant functions cannot evaluate destructors
 
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/min_const_fn.rs:53:38
+  --> $DIR/min_const_fn.rs:57:24
+   |
+LL |     const fn get_mut_s(&mut self) -> &mut T { &mut self.0 }
+   |                        ^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
+error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:57:38
    |
 LL |     const fn get_mut_s(&mut self) -> &mut T { &mut self.0 }
    |                                      ^^^^^^
@@ -50,7 +95,25 @@ LL |     const fn get_mut_s(&mut self) -> &mut T { &mut self.0 }
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/min_const_fn.rs:58:39
+  --> $DIR/min_const_fn.rs:57:47
+   |
+LL |     const fn get_mut_s(&mut self) -> &mut T { &mut self.0 }
+   |                                               ^^^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
+error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:64:25
+   |
+LL |     const fn get_mut_sq(&mut self) -> &mut T { &mut self.0 }
+   |                         ^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
+error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:64:39
    |
 LL |     const fn get_mut_sq(&mut self) -> &mut T { &mut self.0 }
    |                                       ^^^^^^
@@ -58,8 +121,17 @@ LL |     const fn get_mut_sq(&mut self) -> &mut T { &mut self.0 }
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
+error[E0658]: mutable references are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:64:48
+   |
+LL |     const fn get_mut_sq(&mut self) -> &mut T { &mut self.0 }
+   |                                                ^^^^^^^^^^^
+   |
+   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
+   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:76:16
+  --> $DIR/min_const_fn.rs:84:16
    |
 LL | const fn foo11<T: std::fmt::Display>(t: T) -> T { t }
    |                ^
@@ -68,7 +140,7 @@ LL | const fn foo11<T: std::fmt::Display>(t: T) -> T { t }
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:78:18
+  --> $DIR/min_const_fn.rs:86:18
    |
 LL | const fn foo11_2<T: Send>(t: T) -> T { t }
    |                  ^
@@ -77,7 +149,7 @@ LL | const fn foo11_2<T: Send>(t: T) -> T { t }
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0013]: constant functions cannot refer to statics
-  --> $DIR/min_const_fn.rs:82:27
+  --> $DIR/min_const_fn.rs:90:27
    |
 LL | const fn foo25() -> u32 { BAR }
    |                           ^^^
@@ -85,7 +157,7 @@ LL | const fn foo25() -> u32 { BAR }
    = help: consider extracting the value of the `static` to a `const`, and referring to that
 
 error[E0013]: constant functions cannot refer to statics
-  --> $DIR/min_const_fn.rs:83:37
+  --> $DIR/min_const_fn.rs:91:37
    |
 LL | const fn foo26() -> &'static u32 { &BAR }
    |                                     ^^^
@@ -93,7 +165,7 @@ LL | const fn foo26() -> &'static u32 { &BAR }
    = help: consider extracting the value of the `static` to a `const`, and referring to that
 
 error[E0658]: casting pointers to integers in constant functions is unstable
-  --> $DIR/min_const_fn.rs:84:42
+  --> $DIR/min_const_fn.rs:92:42
    |
 LL | const fn foo30(x: *const u32) -> usize { x as usize }
    |                                          ^^^^^^^^^^
@@ -102,7 +174,7 @@ LL | const fn foo30(x: *const u32) -> usize { x as usize }
    = help: add `#![feature(const_raw_ptr_to_usize_cast)]` to the crate attributes to enable
 
 error[E0658]: casting pointers to integers in constant functions is unstable
-  --> $DIR/min_const_fn.rs:86:63
+  --> $DIR/min_const_fn.rs:94:63
    |
 LL | const fn foo30_with_unsafe(x: *const u32) -> usize { unsafe { x as usize } }
    |                                                               ^^^^^^^^^^
@@ -111,7 +183,7 @@ LL | const fn foo30_with_unsafe(x: *const u32) -> usize { unsafe { x as usize }
    = help: add `#![feature(const_raw_ptr_to_usize_cast)]` to the crate attributes to enable
 
 error[E0658]: casting pointers to integers in constant functions is unstable
-  --> $DIR/min_const_fn.rs:88:42
+  --> $DIR/min_const_fn.rs:96:42
    |
 LL | const fn foo30_2(x: *mut u32) -> usize { x as usize }
    |                                          ^^^^^^^^^^
@@ -120,7 +192,7 @@ LL | const fn foo30_2(x: *mut u32) -> usize { x as usize }
    = help: add `#![feature(const_raw_ptr_to_usize_cast)]` to the crate attributes to enable
 
 error[E0658]: casting pointers to integers in constant functions is unstable
-  --> $DIR/min_const_fn.rs:90:63
+  --> $DIR/min_const_fn.rs:98:63
    |
 LL | const fn foo30_2_with_unsafe(x: *mut u32) -> usize { unsafe { x as usize } }
    |                                                               ^^^^^^^^^^
@@ -129,7 +201,7 @@ LL | const fn foo30_2_with_unsafe(x: *mut u32) -> usize { unsafe { x as usize }
    = help: add `#![feature(const_raw_ptr_to_usize_cast)]` to the crate attributes to enable
 
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/min_const_fn.rs:93:14
+  --> $DIR/min_const_fn.rs:101:14
    |
 LL | const fn inc(x: &mut i32) { *x += 1 }
    |              ^
@@ -138,7 +210,7 @@ LL | const fn inc(x: &mut i32) { *x += 1 }
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:102:6
+  --> $DIR/min_const_fn.rs:110:6
    |
 LL | impl<T: std::fmt::Debug> Foo<T> {
    |      ^
@@ -147,7 +219,7 @@ LL | impl<T: std::fmt::Debug> Foo<T> {
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:107:6
+  --> $DIR/min_const_fn.rs:115:6
    |
 LL | impl<T: std::fmt::Debug + Sized> Foo<T> {
    |      ^
@@ -156,7 +228,7 @@ LL | impl<T: std::fmt::Debug + Sized> Foo<T> {
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:112:6
+  --> $DIR/min_const_fn.rs:120:6
    |
 LL | impl<T: Sync + Sized> Foo<T> {
    |      ^
@@ -165,7 +237,7 @@ LL | impl<T: Sync + Sized> Foo<T> {
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:118:34
+  --> $DIR/min_const_fn.rs:126:34
    |
 LL | const fn no_apit2(_x: AlanTuring<impl std::fmt::Debug>) {}
    |                                  ^^^^^^^^^^^^^^^^^^^^
@@ -173,8 +245,16 @@ LL | const fn no_apit2(_x: AlanTuring<impl std::fmt::Debug>) {}
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
+error[E0493]: destructors cannot be evaluated at compile-time
+  --> $DIR/min_const_fn.rs:126:19
+   |
+LL | const fn no_apit2(_x: AlanTuring<impl std::fmt::Debug>) {}
+   |                   ^^                                     - value is dropped here
+   |                   |
+   |                   constant functions cannot evaluate destructors
+
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:120:22
+  --> $DIR/min_const_fn.rs:129:22
    |
 LL | const fn no_apit(_x: impl std::fmt::Debug) {}
    |                      ^^^^^^^^^^^^^^^^^^^^
@@ -182,8 +262,16 @@ LL | const fn no_apit(_x: impl std::fmt::Debug) {}
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
+error[E0493]: destructors cannot be evaluated at compile-time
+  --> $DIR/min_const_fn.rs:129:18
+   |
+LL | const fn no_apit(_x: impl std::fmt::Debug) {}
+   |                  ^^                         - value is dropped here
+   |                  |
+   |                  constant functions cannot evaluate destructors
+
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:121:23
+  --> $DIR/min_const_fn.rs:132:23
    |
 LL | const fn no_dyn_trait(_x: &dyn std::fmt::Debug) {}
    |                       ^^
@@ -192,7 +280,7 @@ LL | const fn no_dyn_trait(_x: &dyn std::fmt::Debug) {}
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:122:32
+  --> $DIR/min_const_fn.rs:134:32
    |
 LL | const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -200,17 +288,35 @@ LL | const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
-error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:127:41
+error[E0723]: unsizing casts to types besides slices are not allowed in const fn
+  --> $DIR/min_const_fn.rs:134:63
+   |
+LL | const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
+   |                                                               ^^^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn)]` to the crate attributes to enable
+
+error[E0723]: unsizing casts to types besides slices are not allowed in const fn
+  --> $DIR/min_const_fn.rs:134:63
+   |
+LL | const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
+   |                                                               ^^^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn)]` to the crate attributes to enable
+
+error[E0723]: unsizing casts to types besides slices are not allowed in const fn
+  --> $DIR/min_const_fn.rs:141:42
    |
 LL | const fn really_no_traits_i_mean_it() { (&() as &dyn std::fmt::Debug, ()).1 }
-   |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |                                          ^^^
    |
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0658]: function pointers cannot appear in constant functions
-  --> $DIR/min_const_fn.rs:130:21
+  --> $DIR/min_const_fn.rs:144:21
    |
 LL | const fn no_fn_ptrs(_x: fn()) {}
    |                     ^^
@@ -219,7 +325,7 @@ LL | const fn no_fn_ptrs(_x: fn()) {}
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
 error[E0658]: function pointers cannot appear in constant functions
-  --> $DIR/min_const_fn.rs:132:27
+  --> $DIR/min_const_fn.rs:146:27
    |
 LL | const fn no_fn_ptrs2() -> fn() { fn foo() {} foo }
    |                           ^^^^
@@ -227,7 +333,16 @@ LL | const fn no_fn_ptrs2() -> fn() { fn foo() {} foo }
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
-error: aborting due to 26 previous errors
+error[E0658]: function pointer casts are not allowed in constant functions
+  --> $DIR/min_const_fn.rs:146:46
+   |
+LL | const fn no_fn_ptrs2() -> fn() { fn foo() {} foo }
+   |                                              ^^^
+   |
+   = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
+   = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
+
+error: aborting due to 39 previous errors
 
 Some errors have detailed explanations: E0013, E0493, E0658, E0723.
 For more information about an error, try `rustc --explain E0013`.
diff --git a/src/test/ui/consts/min_const_fn/min_const_fn_dyn.rs b/src/test/ui/consts/min_const_fn/min_const_fn_dyn.rs
index 6ca1e59b3af..4a22ef2dffd 100644
--- a/src/test/ui/consts/min_const_fn/min_const_fn_dyn.rs
+++ b/src/test/ui/consts/min_const_fn/min_const_fn_dyn.rs
@@ -10,6 +10,6 @@ const fn no_inner_dyn_trait2(x: Hide) {
 //~^ ERROR trait bounds other than `Sized`
 }
 const fn no_inner_dyn_trait_ret() -> Hide { Hide(HasDyn { field: &0 }) }
-//~^ ERROR trait bounds other than `Sized`
+//~^ ERROR unsizing cast
 
 fn main() {}
diff --git a/src/test/ui/consts/min_const_fn/min_const_fn_dyn.stderr b/src/test/ui/consts/min_const_fn/min_const_fn_dyn.stderr
index 17e171c2fc9..1394db591ca 100644
--- a/src/test/ui/consts/min_const_fn/min_const_fn_dyn.stderr
+++ b/src/test/ui/consts/min_const_fn/min_const_fn_dyn.stderr
@@ -7,7 +7,7 @@ LL |     x.0.field;
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
-error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
+error[E0723]: unsizing casts to types besides slices are not allowed in const fn
   --> $DIR/min_const_fn_dyn.rs:12:66
    |
 LL | const fn no_inner_dyn_trait_ret() -> Hide { Hide(HasDyn { field: &0 }) }
diff --git a/src/test/ui/consts/min_const_fn/min_const_fn_fn_ptr.stderr b/src/test/ui/consts/min_const_fn/min_const_fn_fn_ptr.stderr
index 8d60436ea39..8d82674bbf2 100644
--- a/src/test/ui/consts/min_const_fn/min_const_fn_fn_ptr.stderr
+++ b/src/test/ui/consts/min_const_fn/min_const_fn_fn_ptr.stderr
@@ -7,7 +7,7 @@ LL |     x.0.field;
    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
    = help: add `#![feature(const_fn_fn_ptr_basics)]` to the crate attributes to enable
 
-error[E0658]: function pointers cannot appear in constant functions
+error[E0658]: function pointer casts are not allowed in constant functions
   --> $DIR/min_const_fn_fn_ptr.rs:16:59
    |
 LL | const fn no_inner_dyn_trait_ret() -> Hide { Hide(HasPtr { field }) }
diff --git a/src/test/ui/consts/min_const_fn/min_const_fn_libstd_stability.stderr b/src/test/ui/consts/min_const_fn/min_const_fn_libstd_stability.stderr
index fa2260b40d1..de6a9a19269 100644
--- a/src/test/ui/consts/min_const_fn/min_const_fn_libstd_stability.stderr
+++ b/src/test/ui/consts/min_const_fn/min_const_fn_libstd_stability.stderr
@@ -20,11 +20,14 @@ error: const-stable function cannot use `#[feature(const_fn_floating_point_arith
 LL | const fn bar3() -> u32 { (5f32 + 6f32) as u32 }
    |                          ^^^^^^^^^^^^^
    |
-   = note: otherwise `#[allow_internal_unstable]` can be used to bypass stability checks
 help: if it is not part of the public API, make this function unstably const
    |
 LL | #[rustc_const_unstable(feature = "...", issue = "...")]
    |
+help: otherwise `#[allow_internal_unstable]` can be used to bypass stability checks
+   |
+LL | #[allow_internal_unstable(const_fn_floating_point_arithmetic)]
+   |
 
 error: `foo2_gated` is not yet stable as a const fn
   --> $DIR/min_const_fn_libstd_stability.rs:39:32
diff --git a/src/test/ui/consts/min_const_fn/min_const_unsafe_fn_libstd_stability.stderr b/src/test/ui/consts/min_const_fn/min_const_unsafe_fn_libstd_stability.stderr
index 1ca5964ce0f..f258deb12a9 100644
--- a/src/test/ui/consts/min_const_fn/min_const_unsafe_fn_libstd_stability.stderr
+++ b/src/test/ui/consts/min_const_fn/min_const_unsafe_fn_libstd_stability.stderr
@@ -20,11 +20,14 @@ error: const-stable function cannot use `#[feature(const_fn_floating_point_arith
 LL | const unsafe fn bar3() -> u32 { (5f32 + 6f32) as u32 }
    |                                 ^^^^^^^^^^^^^
    |
-   = note: otherwise `#[allow_internal_unstable]` can be used to bypass stability checks
 help: if it is not part of the public API, make this function unstably const
    |
 LL | #[rustc_const_unstable(feature = "...", issue = "...")]
    |
+help: otherwise `#[allow_internal_unstable]` can be used to bypass stability checks
+   |
+LL | #[allow_internal_unstable(const_fn_floating_point_arithmetic)]
+   |
 
 error: `foo2_gated` is not yet stable as a const fn
   --> $DIR/min_const_unsafe_fn_libstd_stability.rs:39:48
diff --git a/src/test/ui/consts/min_const_fn/mutable_borrow.stderr b/src/test/ui/consts/min_const_fn/mutable_borrow.stderr
index 4e5cdbb18aa..8e95a4c68a2 100644
--- a/src/test/ui/consts/min_const_fn/mutable_borrow.stderr
+++ b/src/test/ui/consts/min_const_fn/mutable_borrow.stderr
@@ -1,17 +1,17 @@
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/mutable_borrow.rs:3:9
+  --> $DIR/mutable_borrow.rs:3:13
    |
 LL |     let b = &mut a;
-   |         ^
+   |             ^^^^^^
    |
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/mutable_borrow.rs:12:13
+  --> $DIR/mutable_borrow.rs:12:17
    |
 LL |         let b = &mut a;
-   |             ^
+   |                 ^^^^^^
    |
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
diff --git a/src/test/ui/consts/projection_qualif.rs b/src/test/ui/consts/projection_qualif.rs
index 7db970cf137..5e2584a6e95 100644
--- a/src/test/ui/consts/projection_qualif.rs
+++ b/src/test/ui/consts/projection_qualif.rs
@@ -9,7 +9,6 @@ const FOO: &u32 = {
     {
         let b: *mut u32 = &mut a; //~ ERROR mutable references are not allowed in constants
         unsafe { *b = 5; } //~ ERROR dereferencing raw pointers in constants
-        //[stock]~^ contains unimplemented expression
     }
     &{a}
 };
diff --git a/src/test/ui/consts/projection_qualif.stock.stderr b/src/test/ui/consts/projection_qualif.stock.stderr
index 212f1228645..fad8f011f75 100644
--- a/src/test/ui/consts/projection_qualif.stock.stderr
+++ b/src/test/ui/consts/projection_qualif.stock.stderr
@@ -13,15 +13,7 @@ LL |         unsafe { *b = 5; }
    = note: see issue #51911 <https://github.com/rust-lang/rust/issues/51911> for more information
    = help: add `#![feature(const_raw_ptr_deref)]` to the crate attributes to enable
 
-error[E0019]: constant contains unimplemented expression type
-  --> $DIR/projection_qualif.rs:11:18
-   |
-LL |         unsafe { *b = 5; }
-   |                  ^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
-Some errors have detailed explanations: E0019, E0658, E0764.
-For more information about an error, try `rustc --explain E0019`.
+Some errors have detailed explanations: E0658, E0764.
+For more information about an error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/static_mut_containing_mut_ref2.rs b/src/test/ui/consts/static_mut_containing_mut_ref2.rs
index a6bbe8d6ec2..2821d1a0154 100644
--- a/src/test/ui/consts/static_mut_containing_mut_ref2.rs
+++ b/src/test/ui/consts/static_mut_containing_mut_ref2.rs
@@ -6,6 +6,5 @@ static mut STDERR_BUFFER_SPACE: u8 = 0;
 
 pub static mut STDERR_BUFFER: () = unsafe { *(&mut STDERR_BUFFER_SPACE) = 42; };
 //~^ ERROR  mutable references are not allowed in statics
-//[stock]~| ERROR static contains unimplemented expression type
 
 fn main() {}
diff --git a/src/test/ui/consts/static_mut_containing_mut_ref2.stock.stderr b/src/test/ui/consts/static_mut_containing_mut_ref2.stock.stderr
index 57fb27e642e..36c280ca5c6 100644
--- a/src/test/ui/consts/static_mut_containing_mut_ref2.stock.stderr
+++ b/src/test/ui/consts/static_mut_containing_mut_ref2.stock.stderr
@@ -4,15 +4,6 @@ error[E0764]: mutable references are not allowed in statics
 LL | pub static mut STDERR_BUFFER: () = unsafe { *(&mut STDERR_BUFFER_SPACE) = 42; };
    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ `&mut` is only allowed in `const fn`
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/static_mut_containing_mut_ref2.rs:7:45
-   |
-LL | pub static mut STDERR_BUFFER: () = unsafe { *(&mut STDERR_BUFFER_SPACE) = 42; };
-   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
-Some errors have detailed explanations: E0019, E0764.
-For more information about an error, try `rustc --explain E0019`.
+For more information about this error, try `rustc --explain E0764`.
diff --git a/src/test/ui/error-codes/E0010-teach.rs b/src/test/ui/error-codes/E0010-teach.rs
index da51035ab55..fc5dffb37cf 100644
--- a/src/test/ui/error-codes/E0010-teach.rs
+++ b/src/test/ui/error-codes/E0010-teach.rs
@@ -4,6 +4,5 @@
 #![allow(warnings)]
 
 const CON : Box<i32> = box 0; //~ ERROR E0010
-//~^ ERROR constant contains unimplemented expression type
 
 fn main() {}
diff --git a/src/test/ui/error-codes/E0010-teach.stderr b/src/test/ui/error-codes/E0010-teach.stderr
index c15ab5c655a..33de9fd685e 100644
--- a/src/test/ui/error-codes/E0010-teach.stderr
+++ b/src/test/ui/error-codes/E0010-teach.stderr
@@ -6,17 +6,6 @@ LL | const CON : Box<i32> = box 0;
    |
    = note: The value of statics and constants must be known at compile time, and they live for the entire lifetime of a program. Creating a boxed value allocates memory on the heap at runtime, and therefore cannot be done at compile time.
 
-error[E0019]: constant contains unimplemented expression type
-  --> $DIR/E0010-teach.rs:6:28
-   |
-LL | const CON : Box<i32> = box 0;
-   |                            ^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-   = note: A function call isn't allowed in the const's initialization expression because the expression's value must be known at compile-time.
-   = note: Remember: you can't use a function call inside a const's initialization expression! However, you can use it anywhere else.
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
-Some errors have detailed explanations: E0010, E0019.
-For more information about an error, try `rustc --explain E0010`.
+For more information about this error, try `rustc --explain E0010`.
diff --git a/src/test/ui/error-codes/E0010.rs b/src/test/ui/error-codes/E0010.rs
index 3398e2c28ba..e62997640f4 100644
--- a/src/test/ui/error-codes/E0010.rs
+++ b/src/test/ui/error-codes/E0010.rs
@@ -2,6 +2,5 @@
 #![allow(warnings)]
 
 const CON : Box<i32> = box 0; //~ ERROR E0010
-//~^ ERROR constant contains unimplemented expression type
 
 fn main() {}
diff --git a/src/test/ui/error-codes/E0010.stderr b/src/test/ui/error-codes/E0010.stderr
index f49fb9c4632..0042333b98a 100644
--- a/src/test/ui/error-codes/E0010.stderr
+++ b/src/test/ui/error-codes/E0010.stderr
@@ -4,15 +4,6 @@ error[E0010]: allocations are not allowed in constants
 LL | const CON : Box<i32> = box 0;
    |                        ^^^^^ allocation not allowed in constants
 
-error[E0019]: constant contains unimplemented expression type
-  --> $DIR/E0010.rs:4:28
-   |
-LL | const CON : Box<i32> = box 0;
-   |                            ^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
-Some errors have detailed explanations: E0010, E0019.
-For more information about an error, try `rustc --explain E0010`.
+For more information about this error, try `rustc --explain E0010`.
diff --git a/src/test/ui/error-codes/E0017.rs b/src/test/ui/error-codes/E0017.rs
index 54d3cc54a84..262f7bc72c7 100644
--- a/src/test/ui/error-codes/E0017.rs
+++ b/src/test/ui/error-codes/E0017.rs
@@ -5,8 +5,8 @@ static mut M: i32 = 3;
 const CR: &'static mut i32 = &mut C; //~ ERROR E0764
                                      //~| WARN taking a mutable
 static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR E0764
-                                              //~| ERROR E0019
                                               //~| ERROR cannot borrow
+
 static CONST_REF: &'static mut i32 = &mut C; //~ ERROR E0764
                                               //~| WARN taking a mutable
 static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M }; //~ ERROR E0764
diff --git a/src/test/ui/error-codes/E0017.stderr b/src/test/ui/error-codes/E0017.stderr
index 40ef6bd97b3..ea591587e6d 100644
--- a/src/test/ui/error-codes/E0017.stderr
+++ b/src/test/ui/error-codes/E0017.stderr
@@ -19,14 +19,6 @@ error[E0764]: mutable references are not allowed in constants
 LL | const CR: &'static mut i32 = &mut C;
    |                              ^^^^^^ `&mut` is only allowed in `const fn`
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/E0017.rs:7:39
-   |
-LL | static STATIC_REF: &'static mut i32 = &mut X;
-   |                                       ^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0764]: mutable references are not allowed in statics
   --> $DIR/E0017.rs:7:39
    |
@@ -65,7 +57,7 @@ error[E0764]: mutable references are not allowed in statics
 LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M };
    |                                                    ^^^^^^ `&mut` is only allowed in `const fn`
 
-error: aborting due to 6 previous errors; 2 warnings emitted
+error: aborting due to 5 previous errors; 2 warnings emitted
 
-Some errors have detailed explanations: E0019, E0596, E0764.
-For more information about an error, try `rustc --explain E0019`.
+Some errors have detailed explanations: E0596, E0764.
+For more information about an error, try `rustc --explain E0596`.
diff --git a/src/test/ui/error-codes/E0388.rs b/src/test/ui/error-codes/E0388.rs
index 8ad586bb30f..bb0c4979b9a 100644
--- a/src/test/ui/error-codes/E0388.rs
+++ b/src/test/ui/error-codes/E0388.rs
@@ -3,9 +3,9 @@ const C: i32 = 2;
 
 const CR: &'static mut i32 = &mut C; //~ ERROR E0764
                                      //~| WARN taking a mutable
-static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR E0019
-                                              //~| ERROR cannot borrow
+static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR cannot borrow
                                               //~| ERROR E0764
+
 static CONST_REF: &'static mut i32 = &mut C; //~ ERROR E0764
                                              //~| WARN taking a mutable
 
diff --git a/src/test/ui/error-codes/E0388.stderr b/src/test/ui/error-codes/E0388.stderr
index 39bc717ceec..73e0b139cd0 100644
--- a/src/test/ui/error-codes/E0388.stderr
+++ b/src/test/ui/error-codes/E0388.stderr
@@ -19,14 +19,6 @@ error[E0764]: mutable references are not allowed in constants
 LL | const CR: &'static mut i32 = &mut C;
    |                              ^^^^^^ `&mut` is only allowed in `const fn`
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/E0388.rs:6:39
-   |
-LL | static STATIC_REF: &'static mut i32 = &mut X;
-   |                                       ^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0764]: mutable references are not allowed in statics
   --> $DIR/E0388.rs:6:39
    |
@@ -59,7 +51,7 @@ error[E0764]: mutable references are not allowed in statics
 LL | static CONST_REF: &'static mut i32 = &mut C;
    |                                      ^^^^^^ `&mut` is only allowed in `const fn`
 
-error: aborting due to 5 previous errors; 2 warnings emitted
+error: aborting due to 4 previous errors; 2 warnings emitted
 
-Some errors have detailed explanations: E0019, E0596, E0764.
-For more information about an error, try `rustc --explain E0019`.
+Some errors have detailed explanations: E0596, E0764.
+For more information about an error, try `rustc --explain E0596`.
diff --git a/src/test/ui/issues/issue-7364.rs b/src/test/ui/issues/issue-7364.rs
index 39452897e67..29a1644673d 100644
--- a/src/test/ui/issues/issue-7364.rs
+++ b/src/test/ui/issues/issue-7364.rs
@@ -6,6 +6,5 @@ use std::cell::RefCell;
 static boxed: Box<RefCell<isize>> = box RefCell::new(0);
 //~^ ERROR allocations are not allowed in statics
 //~| ERROR `RefCell<isize>` cannot be shared between threads safely [E0277]
-//~| ERROR static contains unimplemented expression type
 
 fn main() { }
diff --git a/src/test/ui/issues/issue-7364.stderr b/src/test/ui/issues/issue-7364.stderr
index 90f3bf53a7b..8ceb3be7ec9 100644
--- a/src/test/ui/issues/issue-7364.stderr
+++ b/src/test/ui/issues/issue-7364.stderr
@@ -4,14 +4,6 @@ error[E0010]: allocations are not allowed in statics
 LL | static boxed: Box<RefCell<isize>> = box RefCell::new(0);
    |                                     ^^^^^^^^^^^^^^^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/issue-7364.rs:6:41
-   |
-LL | static boxed: Box<RefCell<isize>> = box RefCell::new(0);
-   |                                         ^^^^^^^^^^^^^^^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
 error[E0277]: `RefCell<isize>` cannot be shared between threads safely
   --> $DIR/issue-7364.rs:6:1
    |
@@ -23,7 +15,7 @@ LL | static boxed: Box<RefCell<isize>> = box RefCell::new(0);
    = note: required because it appears within the type `Box<RefCell<isize>>`
    = note: shared static variables must have a type that implements `Sync`
 
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
-Some errors have detailed explanations: E0010, E0019, E0277.
+Some errors have detailed explanations: E0010, E0277.
 For more information about an error, try `rustc --explain E0010`.
diff --git a/src/test/ui/parser/fn-header-semantic-fail.rs b/src/test/ui/parser/fn-header-semantic-fail.rs
index 6d3fc3ce2f1..c327667f4cd 100644
--- a/src/test/ui/parser/fn-header-semantic-fail.rs
+++ b/src/test/ui/parser/fn-header-semantic-fail.rs
@@ -12,7 +12,6 @@ fn main() {
     extern "C" fn ff4() {} // OK.
     const async unsafe extern "C" fn ff5() {} // OK.
     //~^ ERROR functions cannot be both `const` and `async`
-    //~| ERROR `from_generator` is not yet stable as a const fn
 
     trait X {
         async fn ft1(); //~ ERROR functions in traits cannot be declared `async`
@@ -35,7 +34,6 @@ fn main() {
         const async unsafe extern "C" fn ft5() {}
         //~^ ERROR functions in traits cannot be declared `async`
         //~| ERROR functions in traits cannot be declared const
-        //~| ERROR `from_generator` is not yet stable as a const fn
         //~| ERROR method `ft5` has an incompatible type for trait
         //~| ERROR functions cannot be both `const` and `async`
     }
@@ -47,7 +45,6 @@ fn main() {
         extern "C" fn fi4() {} // OK.
         const async unsafe extern "C" fn fi5() {}
         //~^ ERROR functions cannot be both `const` and `async`
-        //~| ERROR `from_generator` is not yet stable as a const fn
     }
 
     extern {
diff --git a/src/test/ui/parser/fn-header-semantic-fail.stderr b/src/test/ui/parser/fn-header-semantic-fail.stderr
index f1e21884040..4193b3ee695 100644
--- a/src/test/ui/parser/fn-header-semantic-fail.stderr
+++ b/src/test/ui/parser/fn-header-semantic-fail.stderr
@@ -8,7 +8,7 @@ LL |     const async unsafe extern "C" fn ff5() {} // OK.
    |     `const` because of this
 
 error[E0706]: functions in traits cannot be declared `async`
-  --> $DIR/fn-header-semantic-fail.rs:18:9
+  --> $DIR/fn-header-semantic-fail.rs:17:9
    |
 LL |         async fn ft1();
    |         -----^^^^^^^^^^
@@ -19,19 +19,19 @@ LL |         async fn ft1();
    = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
 
 error[E0379]: functions in traits cannot be declared const
-  --> $DIR/fn-header-semantic-fail.rs:20:9
+  --> $DIR/fn-header-semantic-fail.rs:19:9
    |
 LL |         const fn ft3();
    |         ^^^^^ functions in traits cannot be const
 
 error[E0379]: functions in traits cannot be declared const
-  --> $DIR/fn-header-semantic-fail.rs:22:9
+  --> $DIR/fn-header-semantic-fail.rs:21:9
    |
 LL |         const async unsafe extern "C" fn ft5();
    |         ^^^^^ functions in traits cannot be const
 
 error[E0706]: functions in traits cannot be declared `async`
-  --> $DIR/fn-header-semantic-fail.rs:22:9
+  --> $DIR/fn-header-semantic-fail.rs:21:9
    |
 LL |         const async unsafe extern "C" fn ft5();
    |         ^^^^^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -42,7 +42,7 @@ LL |         const async unsafe extern "C" fn ft5();
    = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
 
 error: functions cannot be both `const` and `async`
-  --> $DIR/fn-header-semantic-fail.rs:22:9
+  --> $DIR/fn-header-semantic-fail.rs:21:9
    |
 LL |         const async unsafe extern "C" fn ft5();
    |         ^^^^^-^^^^^----------------------------
@@ -51,7 +51,7 @@ LL |         const async unsafe extern "C" fn ft5();
    |         `const` because of this
 
 error[E0706]: functions in traits cannot be declared `async`
-  --> $DIR/fn-header-semantic-fail.rs:30:9
+  --> $DIR/fn-header-semantic-fail.rs:29:9
    |
 LL |         async fn ft1() {}
    |         -----^^^^^^^^^^^^
@@ -62,19 +62,19 @@ LL |         async fn ft1() {}
    = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
 
 error[E0379]: functions in traits cannot be declared const
-  --> $DIR/fn-header-semantic-fail.rs:33:9
+  --> $DIR/fn-header-semantic-fail.rs:32:9
    |
 LL |         const fn ft3() {}
    |         ^^^^^ functions in traits cannot be const
 
 error[E0379]: functions in traits cannot be declared const
-  --> $DIR/fn-header-semantic-fail.rs:35:9
+  --> $DIR/fn-header-semantic-fail.rs:34:9
    |
 LL |         const async unsafe extern "C" fn ft5() {}
    |         ^^^^^ functions in traits cannot be const
 
 error[E0706]: functions in traits cannot be declared `async`
-  --> $DIR/fn-header-semantic-fail.rs:35:9
+  --> $DIR/fn-header-semantic-fail.rs:34:9
    |
 LL |         const async unsafe extern "C" fn ft5() {}
    |         ^^^^^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -85,7 +85,7 @@ LL |         const async unsafe extern "C" fn ft5() {}
    = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
 
 error: functions cannot be both `const` and `async`
-  --> $DIR/fn-header-semantic-fail.rs:35:9
+  --> $DIR/fn-header-semantic-fail.rs:34:9
    |
 LL |         const async unsafe extern "C" fn ft5() {}
    |         ^^^^^-^^^^^------------------------------
@@ -94,7 +94,7 @@ LL |         const async unsafe extern "C" fn ft5() {}
    |         `const` because of this
 
 error: functions cannot be both `const` and `async`
-  --> $DIR/fn-header-semantic-fail.rs:48:9
+  --> $DIR/fn-header-semantic-fail.rs:46:9
    |
 LL |         const async unsafe extern "C" fn fi5() {}
    |         ^^^^^-^^^^^------------------------------
@@ -103,7 +103,7 @@ LL |         const async unsafe extern "C" fn fi5() {}
    |         `const` because of this
 
 error: functions in `extern` blocks cannot have qualifiers
-  --> $DIR/fn-header-semantic-fail.rs:54:18
+  --> $DIR/fn-header-semantic-fail.rs:51:18
    |
 LL |     extern {
    |     ------ in this `extern` block
@@ -113,7 +113,7 @@ LL |         async fn fe1();
    |         help: remove the qualifiers: `fn`
 
 error: functions in `extern` blocks cannot have qualifiers
-  --> $DIR/fn-header-semantic-fail.rs:55:19
+  --> $DIR/fn-header-semantic-fail.rs:52:19
    |
 LL |     extern {
    |     ------ in this `extern` block
@@ -124,7 +124,7 @@ LL |         unsafe fn fe2();
    |         help: remove the qualifiers: `fn`
 
 error: functions in `extern` blocks cannot have qualifiers
-  --> $DIR/fn-header-semantic-fail.rs:56:18
+  --> $DIR/fn-header-semantic-fail.rs:53:18
    |
 LL |     extern {
    |     ------ in this `extern` block
@@ -135,7 +135,7 @@ LL |         const fn fe3();
    |         help: remove the qualifiers: `fn`
 
 error: functions in `extern` blocks cannot have qualifiers
-  --> $DIR/fn-header-semantic-fail.rs:57:23
+  --> $DIR/fn-header-semantic-fail.rs:54:23
    |
 LL |     extern {
    |     ------ in this `extern` block
@@ -146,7 +146,7 @@ LL |         extern "C" fn fe4();
    |         help: remove the qualifiers: `fn`
 
 error: functions in `extern` blocks cannot have qualifiers
-  --> $DIR/fn-header-semantic-fail.rs:58:42
+  --> $DIR/fn-header-semantic-fail.rs:55:42
    |
 LL |     extern {
    |     ------ in this `extern` block
@@ -157,7 +157,7 @@ LL |         const async unsafe extern "C" fn fe5();
    |         help: remove the qualifiers: `fn`
 
 error: functions cannot be both `const` and `async`
-  --> $DIR/fn-header-semantic-fail.rs:58:9
+  --> $DIR/fn-header-semantic-fail.rs:55:9
    |
 LL |         const async unsafe extern "C" fn fe5();
    |         ^^^^^-^^^^^----------------------------
@@ -165,16 +165,8 @@ LL |         const async unsafe extern "C" fn fe5();
    |         |     `async` because of this
    |         `const` because of this
 
-error: `from_generator` is not yet stable as a const fn
-  --> $DIR/fn-header-semantic-fail.rs:13:44
-   |
-LL |     const async unsafe extern "C" fn ff5() {} // OK.
-   |                                            ^^
-   |
-   = help: add `#![feature(gen_future)]` to the crate attributes to enable
-
 error[E0053]: method `ft1` has an incompatible type for trait
-  --> $DIR/fn-header-semantic-fail.rs:30:24
+  --> $DIR/fn-header-semantic-fail.rs:29:24
    |
 LL |         async fn ft1();
    |                       - type in trait
@@ -189,7 +181,7 @@ LL |         async fn ft1() {}
               found fn pointer `fn() -> impl Future`
 
 error[E0053]: method `ft5` has an incompatible type for trait
-  --> $DIR/fn-header-semantic-fail.rs:35:48
+  --> $DIR/fn-header-semantic-fail.rs:34:48
    |
 LL |         const async unsafe extern "C" fn ft5();
    |                                               - type in trait
@@ -203,23 +195,7 @@ LL |         const async unsafe extern "C" fn ft5() {}
    = note: expected fn pointer `unsafe extern "C" fn()`
               found fn pointer `unsafe extern "C" fn() -> impl Future`
 
-error: `from_generator` is not yet stable as a const fn
-  --> $DIR/fn-header-semantic-fail.rs:35:48
-   |
-LL |         const async unsafe extern "C" fn ft5() {}
-   |                                                ^^
-   |
-   = help: add `#![feature(gen_future)]` to the crate attributes to enable
-
-error: `from_generator` is not yet stable as a const fn
-  --> $DIR/fn-header-semantic-fail.rs:48:48
-   |
-LL |         const async unsafe extern "C" fn fi5() {}
-   |                                                ^^
-   |
-   = help: add `#![feature(gen_future)]` to the crate attributes to enable
-
-error: aborting due to 23 previous errors
+error: aborting due to 20 previous errors
 
 Some errors have detailed explanations: E0053, E0379, E0706.
 For more information about an error, try `rustc --explain E0053`.
diff --git a/src/test/ui/static/static-mut-not-constant.rs b/src/test/ui/static/static-mut-not-constant.rs
index 84d401c9fa6..2091fffd418 100644
--- a/src/test/ui/static/static-mut-not-constant.rs
+++ b/src/test/ui/static/static-mut-not-constant.rs
@@ -2,6 +2,5 @@
 
 static mut a: Box<isize> = box 3;
 //~^ ERROR allocations are not allowed in statics
-//~| ERROR static contains unimplemented expression type
 
 fn main() {}
diff --git a/src/test/ui/static/static-mut-not-constant.stderr b/src/test/ui/static/static-mut-not-constant.stderr
index a618b49d108..a0fa245156f 100644
--- a/src/test/ui/static/static-mut-not-constant.stderr
+++ b/src/test/ui/static/static-mut-not-constant.stderr
@@ -4,15 +4,6 @@ error[E0010]: allocations are not allowed in statics
 LL | static mut a: Box<isize> = box 3;
    |                            ^^^^^ allocation not allowed in statics
 
-error[E0019]: static contains unimplemented expression type
-  --> $DIR/static-mut-not-constant.rs:3:32
-   |
-LL | static mut a: Box<isize> = box 3;
-   |                                ^
-   |
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
-Some errors have detailed explanations: E0010, E0019.
-For more information about an error, try `rustc --explain E0010`.
+For more information about this error, try `rustc --explain E0010`.
diff --git a/src/test/ui/unsafe/ranged_ints2_const.stderr b/src/test/ui/unsafe/ranged_ints2_const.stderr
index 1a6bcd36ee1..5ce4296458e 100644
--- a/src/test/ui/unsafe/ranged_ints2_const.stderr
+++ b/src/test/ui/unsafe/ranged_ints2_const.stderr
@@ -1,17 +1,17 @@
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/ranged_ints2_const.rs:11:9
+  --> $DIR/ranged_ints2_const.rs:11:13
    |
 LL |     let y = &mut x.0;
-   |         ^
+   |             ^^^^^^^^
    |
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
 error[E0658]: mutable references are not allowed in constant functions
-  --> $DIR/ranged_ints2_const.rs:18:9
+  --> $DIR/ranged_ints2_const.rs:18:22
    |
 LL |     let y = unsafe { &mut x.0 };
-   |         ^
+   |                      ^^^^^^^^
    |
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable