Rollup merge of #122935 - RalfJung:with-exposed-provenance, r=Amanieu

rename ptr::from_exposed_addr -> ptr::with_exposed_provenance

As discussed on [Zulip](https://rust-lang.zulipchat.com/#narrow/stream/136281-t-opsem/topic/To.20expose.20or.20not.20to.20expose/near/427757066).

The old name, `from_exposed_addr`, makes little sense as it's not the address that is exposed, it's the provenance. (`ptr.expose_addr()` stays unchanged as we haven't found a better option yet. The intended interpretation is "expose the provenance and return the address".)

The new name nicely matches `ptr::without_provenance`.

1 files changed, 3 insertions, 3 deletions

diff --git a/compiler/rustc_const_eval/src/interpret/cast.rs b/compiler/rustc_const_eval/src/interpret/cast.rs
index bbf11f169f9..e0d45f1fe11 100644
--- a/compiler/rustc_const_eval/src/interpret/cast.rs
+++ b/compiler/rustc_const_eval/src/interpret/cast.rs
@@ -40,9 +40,9 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
                 self.write_immediate(*res, dest)?;
             }
 
-            CastKind::PointerFromExposedAddress => {
+            CastKind::PointerWithExposedProvenance => {
                 let src = self.read_immediate(src)?;
-                let res = self.pointer_from_exposed_address_cast(&src, cast_layout)?;
+                let res = self.pointer_with_exposed_provenance_cast(&src, cast_layout)?;
                 self.write_immediate(*res, dest)?;
             }
 
@@ -242,7 +242,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
         Ok(ImmTy::from_scalar(self.cast_from_int_like(scalar, src.layout, cast_to.ty)?, cast_to))
     }
 
-    pub fn pointer_from_exposed_address_cast(
+    pub fn pointer_with_exposed_provenance_cast(
         &self,
         src: &ImmTy<'tcx, M::Provenance>,
         cast_to: TyAndLayout<'tcx>,