Rollup merge of #140151 - RalfJung:drop_in_place-is-not-an-intrinsic, r=Mark-Simulacrum

remove intrinsics::drop_in_place

This was only ever accidentally stable, and has been marked as deprecated since Rust 1.52, released almost 4 years ago. We've removed the old serialization `derive`s, maybe we can remove this one as well?

As suggested by ``@jhpratt,`` let's see what crater says for this one.

3 files changed, 9 insertions, 9 deletions

diff --git a/tests/mir-opt/inline/inline_shims.drop.Inline.panic-abort.diff b/tests/mir-opt/inline/inline_shims.drop.Inline.panic-abort.diff
index 4337e0da183..f6c111a2228 100644
--- a/tests/mir-opt/inline/inline_shims.drop.Inline.panic-abort.diff
+++ b/tests/mir-opt/inline/inline_shims.drop.Inline.panic-abort.diff
@@ -8,7 +8,7 @@
       let _3: ();
       let mut _4: *mut std::vec::Vec<A>;
       let mut _5: *mut std::option::Option<B>;
-+     scope 1 (inlined std::ptr::drop_in_place::<Vec<A>> - shim(Some(Vec<A>))) {
++     scope 1 (inlined drop_in_place::<Vec<A>> - shim(Some(Vec<A>))) {
 +         let mut _6: &mut std::vec::Vec<A>;
 +         let mut _7: ();
 +         scope 2 (inlined <Vec<A> as Drop>::drop) {
@@ -38,14 +38,14 @@
 +                 scope 13 (inlined std::ptr::from_raw_parts_mut::<[A], A>) {
 +                 }
 +             }
-+             scope 14 (inlined std::ptr::drop_in_place::<[A]> - shim(Some([A]))) {
++             scope 14 (inlined drop_in_place::<[A]> - shim(Some([A]))) {
 +                 let mut _12: usize;
 +                 let mut _13: *mut A;
 +                 let mut _14: bool;
 +             }
 +         }
 +     }
-+     scope 15 (inlined std::ptr::drop_in_place::<Option<B>> - shim(Some(Option<B>))) {
++     scope 15 (inlined drop_in_place::<Option<B>> - shim(Some(Option<B>))) {
 +         let mut _15: isize;
 +         let mut _16: isize;
 +     }
@@ -54,7 +54,7 @@
           StorageLive(_3);
           StorageLive(_4);
           _4 = copy _1;
--         _3 = std::ptr::drop_in_place::<Vec<A>>(move _4) -> [return: bb1, unwind unreachable];
+-         _3 = drop_in_place::<Vec<A>>(move _4) -> [return: bb1, unwind unreachable];
 +         StorageLive(_6);
 +         StorageLive(_7);
 +         _6 = &mut (*_4);
@@ -82,7 +82,7 @@
           StorageDead(_3);
           StorageLive(_5);
           _5 = copy _2;
--         _0 = std::ptr::drop_in_place::<Option<B>>(move _5) -> [return: bb2, unwind unreachable];
+-         _0 = drop_in_place::<Option<B>>(move _5) -> [return: bb2, unwind unreachable];
 +         StorageLive(_15);
 +         StorageLive(_16);
 +         _15 = discriminant((*_5));
diff --git a/tests/mir-opt/inline/inline_shims.drop.Inline.panic-unwind.diff b/tests/mir-opt/inline/inline_shims.drop.Inline.panic-unwind.diff
index d89ca003d77..18324276425 100644
--- a/tests/mir-opt/inline/inline_shims.drop.Inline.panic-unwind.diff
+++ b/tests/mir-opt/inline/inline_shims.drop.Inline.panic-unwind.diff
@@ -8,7 +8,7 @@
       let _3: ();
       let mut _4: *mut std::vec::Vec<A>;
       let mut _5: *mut std::option::Option<B>;
-+     scope 1 (inlined std::ptr::drop_in_place::<Option<B>> - shim(Some(Option<B>))) {
++     scope 1 (inlined drop_in_place::<Option<B>> - shim(Some(Option<B>))) {
 +         let mut _6: isize;
 +         let mut _7: isize;
 +     }
@@ -17,7 +17,7 @@
           StorageLive(_3);
           StorageLive(_4);
           _4 = copy _1;
-          _3 = std::ptr::drop_in_place::<Vec<A>>(move _4) -> [return: bb1, unwind continue];
+          _3 = drop_in_place::<Vec<A>>(move _4) -> [return: bb1, unwind continue];
       }
   
       bb1: {
@@ -25,7 +25,7 @@
           StorageDead(_3);
           StorageLive(_5);
           _5 = copy _2;
--         _0 = std::ptr::drop_in_place::<Option<B>>(move _5) -> [return: bb2, unwind continue];
+-         _0 = drop_in_place::<Option<B>>(move _5) -> [return: bb2, unwind continue];
 +         StorageLive(_6);
 +         StorageLive(_7);
 +         _6 = discriminant((*_5));
diff --git a/tests/mir-opt/inline/inline_shims.rs b/tests/mir-opt/inline/inline_shims.rs
index a223c2d2614..bd6cdd78157 100644
--- a/tests/mir-opt/inline/inline_shims.rs
+++ b/tests/mir-opt/inline/inline_shims.rs
@@ -11,7 +11,7 @@ pub fn clone<A, B>(f: fn(A, B)) -> fn(A, B) {
 // EMIT_MIR inline_shims.drop.Inline.diff
 pub fn drop<A, B>(a: *mut Vec<A>, b: *mut Option<B>) {
     // CHECK-LABEL: fn drop(
-    // CHECK: (inlined std::ptr::drop_in_place::<Option<B>> - shim(Some(Option<B>)))
+    // CHECK: (inlined drop_in_place::<Option<B>> - shim(Some(Option<B>)))
     unsafe { std::ptr::drop_in_place(a) }
     unsafe { std::ptr::drop_in_place(b) }
 }