Out-of-line constant pool on Arm: Stage 2 - Introduce ConstantPoolArray object.

src/globals.h

Index: src/globals.h
diff --git a/src/globals.h b/src/globals.h
index 1977e68c82edf30611bfb6d7bfb141bc78074f92..89fc633c44fdf782dea47f37d4bfbf37594b4773 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -232,6 +232,8 @@ const uint32_t kMaxUInt32 = 0xFFFFFFFFu;
 const int kCharSize      = sizeof(char);      // NOLINT
 const int kShortSize     = sizeof(short);     // NOLINT
 const int kIntSize       = sizeof(int);       // NOLINT
+const int kInt32Size     = sizeof(int32_t);   // NOLINT
+const int kInt64Size     = sizeof(int64_t);   // NOLINT
 const int kDoubleSize    = sizeof(double);    // NOLINT
 const int kIntptrSize    = sizeof(intptr_t);  // NOLINT
 const int kPointerSize   = sizeof(void*);     // NOLINT