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

src/arm64/assembler-arm64.cc

Index: src/arm64/assembler-arm64.cc
diff --git a/src/arm64/assembler-arm64.cc b/src/arm64/assembler-arm64.cc
index 93d1d25a6c7747628d51c0c4466432ad9e749fd8..34cee60fedcb7c1a075863f77fa8c4917cc2ed71 100644
--- a/src/arm64/assembler-arm64.cc
+++ b/src/arm64/assembler-arm64.cc
@@ -171,6 +171,8 @@ CPURegList CPURegList::GetSafepointSavedRegisters() {
 // -----------------------------------------------------------------------------
 // Implementation of RelocInfo
 
+const int RelocInfo::kInternalReferenceMask = 1
+                                              << RelocInfo::INTERNAL_REFERENCE;
 const int RelocInfo::kApplyMask = 0;