[cleanup] TNodify ExtendPropertiesBackingStore

There are some 'mode' still pending removal.

Bug: v8:9708, v8:10506, v8:6949
Change-Id: Ie1dc0397241bf046ac9737666e700b98018b2ff5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2202906
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67861}

src/ic/accessor-assembler.cc

@@ -1968,23 +1968,21 @@ TNode<PropertyArray> AccessorAssembler::ExtendPropertiesBackingStore(
     // Previous property deletion could have left behind unused backing store
     // capacity even for a map that think it doesn't have any unused fields.
     // Perform a bounds check to see if we actually have to grow the array.
-    GotoIf(UintPtrLessThan(index, ParameterToIntPtr(var_length.value(), mode)),
+    GotoIf(UintPtrLessThan(index, ParameterToIntPtr(var_length.value())),
            &done);
 
     TNode<BInt> delta = BIntConstant(JSObject::kFieldsAdded);
-    Node* new_capacity = IntPtrOrSmiAdd(var_length.value(), delta, mode);
+    TNode<BInt> new_capacity = IntPtrOrSmiAdd(var_length.value(), delta);
 
     // Grow properties array.
     DCHECK(kMaxNumberOfDescriptors + JSObject::kFieldsAdded <
            FixedArrayBase::GetMaxLengthForNewSpaceAllocation(PACKED_ELEMENTS));
     // The size of a new properties backing store is guaranteed to be small
     // enough that the new backing store will be allocated in new space.
-    CSA_ASSERT(this,
-               UintPtrOrSmiLessThan(
-                   new_capacity,
-                   IntPtrOrSmiConstant(
-                       kMaxNumberOfDescriptors + JSObject::kFieldsAdded, mode),
-                   mode));
+    CSA_ASSERT(this, UintPtrOrSmiLessThan(
+                         new_capacity,
+                         IntPtrOrSmiConstant<BInt>(kMaxNumberOfDescriptors +
+                                                   JSObject::kFieldsAdded)));
 
     TNode<PropertyArray> new_properties =
         AllocatePropertyArray(new_capacity, mode);
@@ -2002,7 +2000,7 @@ TNode<PropertyArray> AccessorAssembler::ExtendPropertiesBackingStore(
     // TODO(gsathya): Clean up the type conversions by creating smarter
     // helpers that do the correct op based on the mode.
     TNode<Int32T> new_capacity_int32 =
-        TruncateIntPtrToInt32(ParameterToIntPtr(new_capacity, mode));
+        TruncateIntPtrToInt32(ParameterToIntPtr(new_capacity));
     TNode<Int32T> new_length_and_hash_int32 =
         Word32Or(var_encoded_hash.value(), new_capacity_int32);
     StoreObjectField(new_properties, PropertyArray::kLengthAndHashOffset,