Adjust tests for new drop and forget lints

Author: Urgau

src/tools/miri/tests/fail/stacked_borrows/illegal_write2.rs

@@ -1,3 +1,5 @@
+#![allow(drop_ref)]
+
 fn main() {
     let target = &mut 42;
     let target2 = target as *mut _;

src/tools/miri/tests/fail/uninit_buffer.rs

@@ -1,5 +1,7 @@
 //@error-pattern: memory is uninitialized at [0x4..0x10]
 
+#![allow(drop_copy)]
+
 use std::alloc::{alloc, dealloc, Layout};
 use std::slice::from_raw_parts;
 

src/tools/miri/tests/fail/uninit_buffer_with_provenance.rs

@@ -2,6 +2,8 @@
 //@normalize-stderr-test: "a[0-9]+" -> "ALLOC"
 #![feature(strict_provenance)]
 
+#![allow(drop_copy)]
+
 // Test printing allocations that contain single-byte provenance.
 
 use std::alloc::{alloc, dealloc, Layout};

src/tools/miri/tests/pass/stacked-borrows/zst-field-retagging-terminates.rs

@@ -1,5 +1,8 @@
 //@compile-flags: -Zmiri-retag-fields
 // Checks that the test does not run forever (which relies on a fast path).
+
+#![allow(drop_copy)]
+
 fn main() {
     let array = [(); usize::MAX];
     drop(array); // Pass the array to a function, retagging its fields

tests/ui/associated-inherent-types/inference.rs

@@ -3,6 +3,7 @@
 
 #![feature(inherent_associated_types)]
 #![allow(incomplete_features)]
+#![allow(drop_copy)]
 
 use std::convert::identity;
 

tests/ui/async-await/multiple-lifetimes/partial-relation.rs

@@ -4,7 +4,7 @@
 async fn lotsa_lifetimes<'a, 'b, 'c>(a: &'a u32, b: &'b u32, c: &'c u32) -> (&'a u32, &'b u32)
     where 'b: 'a
 {
-    drop((a, c));
+    let _ = (a, c);
     (b, b)
 }
 

tests/ui/borrowck/borrowck-closures-slice-patterns-ok.rs

@@ -1,6 +1,7 @@
 // Check that closure captures for slice patterns are inferred correctly
 
 #![allow(unused_variables)]
+#![allow(drop_ref)]
 
 // run-pass
 

tests/ui/borrowck/borrowck-field-sensitivity-rpass.rs

@@ -1,6 +1,7 @@
 // run-pass
 #![allow(unused_mut)]
 #![allow(unused_variables)]
+#![allow(drop_copy)]
 // pretty-expanded FIXME #23616
 
 struct A { a: isize, b: Box<isize> }

tests/ui/borrowck/borrowck-use-mut-borrow-rpass.rs

@@ -1,6 +1,8 @@
 // run-pass
 // pretty-expanded FIXME #23616
 
+#![allow(drop_copy)]
+
 struct A { a: isize, b: Box<isize> }
 
 fn field_copy_after_field_borrow() {

tests/ui/closures/2229_closure_analysis/migrations/issue-78720.rs

@@ -1,6 +1,7 @@
 // run-pass
 
 #![warn(rust_2021_incompatible_closure_captures)]
+#![allow(drop_ref, drop_copy)]
 
 fn main() {
     if let a = "" {