fix: Move CoerceShared into ops

Author: aapoalas

core/src/marker.rs

@@ -1372,12 +1372,3 @@ pub trait CoercePointeeValidated {
 pub trait Reborrow {
     // Empty.
 }
-
-/// Allows reborrowable value to be reborrowed as shared, creating a copy of
-/// that disables the source for writes for the lifetime of the copy.
-#[lang = "coerce_shared"]
-#[unstable(feature = "reborrow", issue = "145612")]
-pub trait CoerceShared: Reborrow {
-    /// The type of this value when reborrowed as shared.
-    type Target: Copy;
-}

core/src/ops/mod.rs

@@ -149,6 +149,7 @@ mod function;
 mod index;
 mod index_range;
 mod range;
+mod reborrow;
 mod try_trait;
 mod unsize;
 
@@ -189,6 +190,8 @@ pub use self::range::{Bound, RangeBounds, RangeInclusive, RangeToInclusive};
 pub use self::range::{OneSidedRange, OneSidedRangeBound};
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use self::range::{Range, RangeFrom, RangeFull, RangeTo};
+#[unstable(feature = "reborrow", issue = "145612")]
+pub use self::reborrow::CoerceShared;
 #[unstable(feature = "try_trait_v2_residual", issue = "91285")]
 pub use self::try_trait::Residual;
 #[unstable(feature = "try_trait_v2_yeet", issue = "96374")]

core/src/ops/reborrow.rs

@@ -0,0 +1,10 @@
+use crate::marker::Reborrow;
+
+/// Allows reborrowable value to be reborrowed as shared, creating a copy
+/// that disables the source for writes for the lifetime of the copy.
+#[lang = "coerce_shared"]
+#[unstable(feature = "reborrow", issue = "145612")]
+pub trait CoerceShared: Reborrow {
+    /// The type of this value when reborrowed as shared.
+    type Target: Copy;
+}