Serializer: correctly deal with internal references.

src/mips64/assembler-mips64-inl.h

Index: src/mips64/assembler-mips64-inl.h
diff --git a/src/mips64/assembler-mips64-inl.h b/src/mips64/assembler-mips64-inl.h
index dede337e2a053d525958398e30cca16b0f1798a7..3a1e2eadfd39dd686748a39428c5b687a71a9672 100644
--- a/src/mips64/assembler-mips64-inl.h
+++ b/src/mips64/assembler-mips64-inl.h
@@ -223,12 +223,24 @@ void RelocInfo::set_target_object(Object* target,
 }
 
 
-Address RelocInfo::target_reference() {
+Address RelocInfo::target_external_reference() {
   DCHECK(rmode_ == EXTERNAL_REFERENCE);
   return Assembler::target_address_at(pc_, host_);
 }
 
 
+Address RelocInfo::target_internal_reference() {
+  DCHECK(rmode_ == INTERNAL_REFERENCE);
+  return Memory::Address_at(pc_);
+}
+
+
+void RelocInfo::set_target_internal_reference(Address target) {
+  DCHECK(rmode_ == INTERNAL_REFERENCE);
+  Memory::Address_at(pc_) = target;
+}
+
+
 Address RelocInfo::target_runtime_entry(Assembler* origin) {
   DCHECK(IsRuntimeEntry(rmode_));
   return target_address();