Auto merge of #112681 - GuillaumeGomez:rollup-rwn4086, r=GuillaumeGomez

Rollup of 8 pull requests

Successful merges:

 - #112403 (Prevent `.eh_frame` from being emitted for `-C panic=abort`)
 - #112517 (`suspicious_double_ref_op`: don't lint on `.borrow()`)
 - #112529 (Extend `unused_must_use` to cover block exprs)
 - #112614 (tweak suggestion for argument-position `impl ?Sized`)
 - #112654 (normalize closure output in equate_inputs_and_outputs)
 - #112660 (Migrate GUI colors test to original CSS color format)
 - #112664 (Add support for test tmpdir to fuchsia test runner)
 - #112669 (Fix comment for ptr alignment checks in codegen)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

tests/fail/dangling_pointers/storage_dead_dangling.rs

@@ -10,7 +10,7 @@ fn fill(v: &mut i32) {
 }
 
 fn evil() {
-    unsafe { &mut *(LEAK as *mut i32) }; //~ ERROR: is a dangling pointer
+    let _ = unsafe { &mut *(LEAK as *mut i32) }; //~ ERROR: is a dangling pointer
 }
 
 fn main() {

tests/fail/dangling_pointers/storage_dead_dangling.stderr

@@ -1,8 +1,8 @@
 error: Undefined Behavior: dereferencing pointer failed: $HEX[noalloc] is a dangling pointer (it has no provenance)
   --> $DIR/storage_dead_dangling.rs:LL:CC
    |
-LL |     unsafe { &mut *(LEAK as *mut i32) };
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: $HEX[noalloc] is a dangling pointer (it has no provenance)
+LL |     let _ = unsafe { &mut *(LEAK as *mut i32) };
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: $HEX[noalloc] is a dangling pointer (it has no provenance)
    |
    = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
    = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information

tests/fail/intrinsics/uninit_uninhabited_type.rs

@@ -2,6 +2,6 @@
 
 #[allow(deprecated, invalid_value)]
 fn main() {
-    unsafe { std::mem::uninitialized::<!>() };
+    let _ = unsafe { std::mem::uninitialized::<!>() };
     //~^ ERROR: attempted to instantiate uninhabited type `!`
 }

tests/fail/intrinsics/uninit_uninhabited_type.stderr

@@ -1,8 +1,8 @@
 error: abnormal termination: aborted execution: attempted to instantiate uninhabited type `!`
   --> $DIR/uninit_uninhabited_type.rs:LL:CC
    |
-LL |     unsafe { std::mem::uninitialized::<!>() };
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ aborted execution: attempted to instantiate uninhabited type `!`
+LL |     let _ = unsafe { std::mem::uninitialized::<!>() };
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ aborted execution: attempted to instantiate uninhabited type `!`
    |
    = note: inside `main` at $DIR/uninit_uninhabited_type.rs:LL:CC
 

tests/fail/intrinsics/zero_fn_ptr.rs

@@ -1,5 +1,5 @@
 #[allow(deprecated, invalid_value)]
 fn main() {
-    unsafe { std::mem::zeroed::<fn()>() };
+    let _ = unsafe { std::mem::zeroed::<fn()>() };
     //~^ ERROR: attempted to zero-initialize type `fn()`, which is invalid
 }

tests/fail/intrinsics/zero_fn_ptr.stderr

@@ -1,8 +1,8 @@
 error: abnormal termination: aborted execution: attempted to zero-initialize type `fn()`, which is invalid
   --> $DIR/zero_fn_ptr.rs:LL:CC
    |
-LL |     unsafe { std::mem::zeroed::<fn()>() };
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ aborted execution: attempted to zero-initialize type `fn()`, which is invalid
+LL |     let _ = unsafe { std::mem::zeroed::<fn()>() };
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^ aborted execution: attempted to zero-initialize type `fn()`, which is invalid
    |
    = note: inside `main` at $DIR/zero_fn_ptr.rs:LL:CC