Deprecate StatusOr<T>::ValueOrDie()

PiperOrigin-RevId: 377575672
Change-Id: I63b08cdb4ea292517d3118e5294d6a35115d367a

asylo/util/statusor.h

@@ -449,15 +449,25 @@ class StatusOr {
   /// This method should only be called if this StatusOr object's status is OK
   /// (i.e. a call to ok() returns true), otherwise this call will abort.
   ///
+  /// \deprecated Deprecated as part of Asylo's `absl::Status` migration. Use
+  ///             `value()`, `operator*()`, or `operator->()` instead.
   /// \return The stored `T` value.
+  ABSL_DEPRECATED(
+      "Deprecated as part of Asylo's absl::Status migration. Use value(), "
+      "operator*(), or operator->() instead.")
   const T &ValueOrDie() const & { return **this; }
 
   /// Gets a mutable reference to the stored `T` value.
   ///
   /// This method should only be called if this StatusOr object's status is OK
   /// (i.e. a call to ok() returns true), otherwise this call will abort.
   ///
+  /// \deprecated Deprecated as part of Asylo's `absl::Status` migration. Use
+  ///             `value()`, `operator*()`, or `operator->()` instead.
   /// \return The stored `T` value.
+  ABSL_DEPRECATED(
+      "Deprecated as part of Asylo's absl::Status migration. Use value(), "
+      "operator*(), or operator->() instead.")
   T &ValueOrDie() & { return **this; }
 
   /// Moves and returns the internally-stored `T` value.
@@ -467,7 +477,12 @@ class StatusOr {
   /// StatusOr object is changed after this call to a valid but unspecified
   /// state.
   ///
+  /// \deprecated Deprecated as part of Asylo's `absl::Status` migration. Use
+  ///             `value()`, `operator*()`, or `operator->()` instead.
   /// \return The stored `T` value.
+  ABSL_DEPRECATED(
+      "Deprecated as part of Asylo's absl::Status migration. Use value(), "
+      "operator*(), or operator->() instead.")
   T ValueOrDie() && { return *std::move(*this); }
 
   /// Gets the stored `T` value.