stabilize raw_ref_op

src/tools/miri/tests/fail/dangling_pointers/dangling_pointer_to_raw_pointer.rs

@@ -1,4 +1,3 @@
-#![feature(raw_ref_op)]
 #![feature(strict_provenance)]
 use std::ptr;
 

src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.rs

@@ -1,7 +1,6 @@
 //@revisions: stack tree none
 //@[tree]compile-flags: -Zmiri-tree-borrows
 //@[none]compile-flags: -Zmiri-disable-stacked-borrows
-#![feature(raw_ref_op)]
 #![feature(core_intrinsics)]
 #![feature(custom_mir)]
 

src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.rs

@@ -1,7 +1,6 @@
 // This does need an aliasing model and protectors.
 //@revisions: stack tree
 //@[tree]compile-flags: -Zmiri-tree-borrows
-#![feature(raw_ref_op)]
 #![feature(core_intrinsics)]
 #![feature(custom_mir)]
 

src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs

@@ -1,7 +1,6 @@
 // This does need an aliasing model and protectors.
 //@revisions: stack tree
 //@[tree]compile-flags: -Zmiri-tree-borrows
-#![feature(raw_ref_op)]
 #![feature(core_intrinsics)]
 #![feature(custom_mir)]
 #![feature(explicit_tail_calls)]

src/tools/miri/tests/fail/function_calls/return_pointer_on_unwind.rs

@@ -1,6 +1,5 @@
 // Doesn't need an aliasing model.
 //@compile-flags: -Zmiri-disable-stacked-borrows
-#![feature(raw_ref_op)]
 #![feature(core_intrinsics)]
 #![feature(custom_mir)]
 

src/tools/miri/tests/pass/function_calls/return_place_on_heap.rs

@@ -1,4 +1,3 @@
-#![feature(raw_ref_op)]
 #![feature(core_intrinsics)]
 #![feature(custom_mir)]