Restore function on arm64

src/arm64/stub-cache-arm64.cc

Index: src/arm64/stub-cache-arm64.cc
diff --git a/src/arm64/stub-cache-arm64.cc b/src/arm64/stub-cache-arm64.cc
index 60f6137b91b3c30219426b396439f65ffaa10901..7ac68e79a5b1c3eebc1b27e8006f586563bc7b50 100644
--- a/src/arm64/stub-cache-arm64.cc
+++ b/src/arm64/stub-cache-arm64.cc
@@ -797,6 +797,13 @@ void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) {
 }
 
 
+void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) {
+  // Return the constant value.
+  __ LoadObject(x0, value);
+  __ Ret();
+}
+
+
 void NamedLoadHandlerCompiler::GenerateLoadCallback(
     Register reg, Handle<ExecutableAccessorInfo> callback) {
   DCHECK(!AreAliased(scratch2(), scratch3(), scratch4(), reg));