Adjust wording of a diagnostic

compiler/rustc_mir/src/transform/check_consts/ops.rs

@@ -298,7 +298,7 @@ impl NonConstOp for MutBorrow {
             ccx.tcx.sess,
             span,
             E0764,
-            "{}mutable references are not allowed in final value of {}s",
+            "{}mutable references are not allowed in the final value of {}s",
             raw,
             ccx.const_kind(),
         );

src/test/ui/check-static-immutable-mut-slices.stderr

@@ -1,4 +1,4 @@
-error[E0764]: mutable references are not allowed in final value of statics
+error[E0764]: mutable references are not allowed in the final value of statics
   --> $DIR/check-static-immutable-mut-slices.rs:3:37
    |
 LL | static TEST: &'static mut [isize] = &mut [];

src/test/ui/consts/const-mut-refs/mut_ref_in_final.stderr

@@ -1,4 +1,4 @@
-error[E0764]: mutable references are not allowed in final value of constants
+error[E0764]: mutable references are not allowed in the final value of constants
   --> $DIR/mut_ref_in_final.rs:10:21
    |
 LL | const B: *mut i32 = &mut 4;

src/test/ui/consts/issue-17718-const-bad-values.stderr

@@ -1,4 +1,4 @@
-error[E0764]: mutable references are not allowed in final value of constants
+error[E0764]: mutable references are not allowed in the final value of constants
   --> $DIR/issue-17718-const-bad-values.rs:1:34
    |
 LL | const C1: &'static mut [usize] = &mut [];

src/test/ui/consts/projection_qualif.mut_refs.stderr → src/test/ui/consts/write_to_mut_ref_dest.mut_refs.stderr

@@ -1,5 +1,5 @@
 error[E0658]: dereferencing raw pointers in constants is unstable
-  --> $DIR/projection_qualif.rs:11:18
+  --> $DIR/write_to_mut_ref_dest.rs:11:18
    |
 LL |         unsafe { *b = 5; }
    |                  ^^^^^^

src/test/ui/consts/projection_qualif.stock.stderr → src/test/ui/consts/write_to_mut_ref_dest.stock.stderr

@@ -1,5 +1,5 @@
 error[E0658]: mutable references are not allowed in constants
-  --> $DIR/projection_qualif.rs:10:27
+  --> $DIR/write_to_mut_ref_dest.rs:10:27
    |
 LL |         let b: *mut u32 = &mut a;
    |                           ^^^^^^
@@ -8,7 +8,7 @@ LL |         let b: *mut u32 = &mut a;
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
 
 error[E0658]: dereferencing raw pointers in constants is unstable
-  --> $DIR/projection_qualif.rs:11:18
+  --> $DIR/write_to_mut_ref_dest.rs:11:18
    |
 LL |         unsafe { *b = 5; }
    |                  ^^^^^^

src/test/ui/consts/read_from_static_mut_ref.stderr → src/test/ui/consts/write_to_static_via_mut_ref.stderr

@@ -1,11 +1,11 @@
-error[E0764]: mutable references are not allowed in final value of statics
-  --> $DIR/read_from_static_mut_ref.rs:4:26
+error[E0764]: mutable references are not allowed in the final value of statics
+  --> $DIR/write_to_static_via_mut_ref.rs:4:26
    |
 LL | static OH_NO: &mut i32 = &mut 42;
    |                          ^^^^^^^
 
 error[E0594]: cannot assign to `*OH_NO`, as `OH_NO` is an immutable static item
-  --> $DIR/read_from_static_mut_ref.rs:7:5
+  --> $DIR/write_to_static_via_mut_ref.rs:7:5
    |
 LL |     *OH_NO = 43;
    |     ^^^^^^^^^^^ cannot assign

src/test/ui/error-codes/E0017.stderr

@@ -13,7 +13,7 @@ note: `const` item defined here
 LL | const C: i32 = 2;
    | ^^^^^^^^^^^^^^^^^
 
-error[E0764]: mutable references are not allowed in final value of constants
+error[E0764]: mutable references are not allowed in the final value of constants
   --> $DIR/E0017.rs:5:30
    |
 LL | const CR: &'static mut i32 = &mut C;
@@ -28,7 +28,7 @@ LL | static STATIC_REF: &'static mut i32 = &mut X;
    = 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[E0764]: mutable references are not allowed in final value of statics
+error[E0764]: mutable references are not allowed in the final value of statics
   --> $DIR/E0017.rs:7:39
    |
 LL | static STATIC_REF: &'static mut i32 = &mut X;
@@ -54,13 +54,13 @@ note: `const` item defined here
 LL | const C: i32 = 2;
    | ^^^^^^^^^^^^^^^^^
 
-error[E0764]: mutable references are not allowed in final value of statics
+error[E0764]: mutable references are not allowed in the final value of statics
   --> $DIR/E0017.rs:11:38
    |
 LL | static CONST_REF: &'static mut i32 = &mut C;
    |                                      ^^^^^^
 
-error[E0764]: mutable references are not allowed in final value of statics
+error[E0764]: mutable references are not allowed in the final value of statics
   --> $DIR/E0017.rs:13:52
    |
 LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M };

src/test/ui/error-codes/E0388.stderr

@@ -13,7 +13,7 @@ note: `const` item defined here
 LL | const C: i32 = 2;
    | ^^^^^^^^^^^^^^^^^
 
-error[E0764]: mutable references are not allowed in final value of constants
+error[E0764]: mutable references are not allowed in the final value of constants
   --> $DIR/E0388.rs:4:30
    |
 LL | const CR: &'static mut i32 = &mut C;
@@ -28,7 +28,7 @@ LL | static STATIC_REF: &'static mut i32 = &mut X;
    = 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[E0764]: mutable references are not allowed in final value of statics
+error[E0764]: mutable references are not allowed in the final value of statics
   --> $DIR/E0388.rs:6:39
    |
 LL | static STATIC_REF: &'static mut i32 = &mut X;
@@ -54,7 +54,7 @@ note: `const` item defined here
 LL | const C: i32 = 2;
    | ^^^^^^^^^^^^^^^^^
 
-error[E0764]: mutable references are not allowed in final value of statics
+error[E0764]: mutable references are not allowed in the final value of statics
   --> $DIR/E0388.rs:10:38
    |
 LL | static CONST_REF: &'static mut i32 = &mut C;

src/test/ui/issues/issue-46604.stderr

@@ -1,4 +1,4 @@
-error[E0764]: mutable references are not allowed in final value of statics
+error[E0764]: mutable references are not allowed in the final value of statics
   --> $DIR/issue-46604.rs:1:25
    |
 LL | static buf: &mut [u8] = &mut [1u8,2,3,4,5,7];