Contribution of PowerPC port (continuation of 422063005) - serialize.cc cleanup

src/x64/assembler-x64-inl.h

Index: src/x64/assembler-x64-inl.h
diff --git a/src/x64/assembler-x64-inl.h b/src/x64/assembler-x64-inl.h
index e8f90c6aca5c39c2f7983a5c17be787e600886fd..c5d27cb01920a86231ec414a5902925e2f31fe7f 100644
--- a/src/x64/assembler-x64-inl.h
+++ b/src/x64/assembler-x64-inl.h
@@ -378,7 +378,8 @@ Address RelocInfo::target_internal_reference() {
 }
 
 
-void RelocInfo::set_target_internal_reference(Address target) {
+void RelocInfo::set_target_internal_reference(
+    Address target, ICacheFlushMode icache_flush_mode) {
   DCHECK(rmode_ == INTERNAL_REFERENCE);
   Memory::Address_at(pc_) = target;
 }