Add support for extended constant pool arrays.

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 3945515e01b1f9bdda347fa68c9fe18c13194829..549c03f32aa6aadc16bf5d21bf203e1cb9f1b9b4 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -1873,10 +1873,11 @@ class Heap {
       ConstantPoolArray* src, Map* map);
 
   MUST_USE_RESULT AllocationResult AllocateConstantPoolArray(
-      int number_of_int64_entries,
-      int number_of_code_ptr_entries,
-      int number_of_heap_ptr_entries,
-      int number_of_int32_entries);
+      const ConstantPoolArray::NumberOfEntries& small);
+
+  MUST_USE_RESULT AllocationResult AllocateExtendedConstantPoolArray(
+      const ConstantPoolArray::NumberOfEntries& small,
+      const ConstantPoolArray::NumberOfEntries& extended);
 
   // Allocates an external array of the specified length and type.
   MUST_USE_RESULT AllocationResult AllocateExternalArray(