[dictionaries] Use IsKey(Isolate* i, Object* o) everywhere

src/heap/mark-compact.cc

Index: src/heap/mark-compact.cc
diff --git a/src/heap/mark-compact.cc b/src/heap/mark-compact.cc
index ac8c19cc11fa670df8b144232b8e3c3af4dd3a58..3d6ad910256ad5f0a8b0d792fe954f71b5709de8 100644
--- a/src/heap/mark-compact.cc
+++ b/src/heap/mark-compact.cc
@@ -2453,7 +2453,7 @@ void MarkCompactCollector::MarkDependentCodeForDeoptimization(
   for (uint32_t i = 0; i < capacity; i++) {
     uint32_t key_index = table->EntryToIndex(i);
     Object* key = table->get(key_index);
-    if (!table->IsKey(key)) continue;
+    if (!table->IsKey(isolate, key)) continue;
     uint32_t value_index = table->EntryToValueIndex(i);
     Object* value = table->get(value_index);
     DCHECK(key->IsWeakCell());