[Arm]: Optimize ConstantPoolBuilder::Populate code by minimizing calls to OffsetOfElementAt

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index a5a312bd9cb16ba060e756404bbe103ce7de3f7a..2b747c93ed8882ae7618457c681acd50ff7c15e9 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -3125,7 +3125,8 @@ class ConstantPoolArray: public HeapObject {
 
   enum LayoutSection {
     SMALL_SECTION = 0,
-    EXTENDED_SECTION
+    EXTENDED_SECTION,
+    NUMBER_OF_LAYOUT_SECTIONS
   };
 
   class NumberOfEntries BASE_EMBEDDED {
@@ -3204,6 +3205,7 @@ class ConstantPoolArray: public HeapObject {
 
   // Returns the type of the entry at the given index.
   inline Type get_type(int index);
+  inline bool offset_is_type(int offset, Type type);
 
   // Setter and getter for pool elements.
   inline Address get_code_ptr_entry(int index);
@@ -3218,6 +3220,13 @@ class ConstantPoolArray: public HeapObject {
   inline void set(int index, double value);
   inline void set(int index, int32_t value);
 
+  // Setters which take a raw offset rather than an index (for code generation).
+  inline void set_at_offset(int offset, int32_t value);
+  inline void set_at_offset(int offset, int64_t value);
+  inline void set_at_offset(int offset, double value);
+  inline void set_at_offset(int offset, Address value);
+  inline void set_at_offset(int offset, Object* value);
+
   // Setter and getter for weak objects state
   inline void set_weak_object_state(WeakObjectState state);
   inline WeakObjectState get_weak_object_state();