[NFC] MoveOnly: Add parameter to function.

For now, it is unused.

Author: nate-chandler

lib/SILOptimizer/Mandatory/MoveOnlyAddressCheckerUtils.cpp

@@ -1899,7 +1899,7 @@ shouldEmitPartialMutationError(UseState &useState, PartialMutation::Kind kind,
     // Otherwise, walk one level towards our child type. We unconditionally
     // unwrap since we should never fail here due to earlier checking.
     std::tie(iterPair, iterType) =
-        *pair.walkOneLevelTowardsChild(iterPair, iterType, fn);
+        *pair.walkOneLevelTowardsChild(iterPair, iterType, targetType, fn);
   }
 
   return {};

lib/SILOptimizer/Mandatory/MoveOnlyBorrowToDestructureUtils.cpp

@@ -1390,8 +1390,8 @@ void Implementation::rewriteUses(InstructionDeleter *deleter) {
 
           // Then walk one level towards our target type.
           std::tie(iterOffsetSize, iterType) =
-              *useOffsetSize.walkOneLevelTowardsChild(parentOffsetSize,
-                                                      iterType, fn);
+              *useOffsetSize.walkOneLevelTowardsChild(
+                  parentOffsetSize, iterType, unwrappedOperandType, fn);
 
           unsigned start = parentOffsetSize.startOffset;
           consumeBuilder.emitDestructureValueOperation(

lib/SILOptimizer/Mandatory/MoveOnlyTypeUtils.cpp

@@ -26,7 +26,7 @@ static StructDecl *getFullyReferenceableStruct(SILType ktypeTy) {
 std::optional<std::pair<TypeOffsetSizePair, SILType>>
 TypeOffsetSizePair::walkOneLevelTowardsChild(
     TypeOffsetSizePair ancestorOffsetSize, SILType ancestorType,
-    SILFunction *fn) const {
+    SILType childType, SILFunction *fn) const {
   assert(ancestorOffsetSize.size >= size &&
          "Too large to be a child of ancestorType");
   assert((ancestorOffsetSize.startOffset <= startOffset &&

lib/SILOptimizer/Mandatory/MoveOnlyTypeUtils.h

@@ -64,7 +64,8 @@ struct TypeOffsetSizePair {
   /// be a child type of \p ancestorType.
   std::optional<std::pair<TypeOffsetSizePair, SILType>>
   walkOneLevelTowardsChild(TypeOffsetSizePair ancestorOffsetSize,
-                           SILType ancestorType, SILFunction *fn) const;
+                           SILType ancestorType, SILType childType,
+                           SILFunction *fn) const;
 
   /// Given an ancestor offset \p ancestorOffset and a type called \p
   /// ancestorType, walk one level towards this current type inserting on value,