Add near calls (32-bit displacement) to Code objects on X64 platform.

src/arm/assembler-arm-inl.h

Index: src/arm/assembler-arm-inl.h
===================================================================
--- src/arm/assembler-arm-inl.h	(revision 3020)
+++ src/arm/assembler-arm-inl.h	(working copy)
@@ -81,10 +81,16 @@
 
 Object* RelocInfo::target_object() {
   ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
-  return reinterpret_cast<Object*>(Assembler::target_address_at(pc_));
+  return Memory::Object_at(Assembler::target_address_address_at(pc_));
 }
 
 
+Handle<Object> RelocInfo::target_object_handle(Assembler *origin) {
+  ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
+  return Memory::Object_Handle_at(Assembler::target_address_address_at(pc_));
+}
+
+
 Object** RelocInfo::target_object_address() {
   ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
   return reinterpret_cast<Object**>(Assembler::target_address_address_at(pc_));