[turbofan] Support new.target in the serializer.

Bug: v8:7790
Change-Id: Ie98cff6f8b1f184c8152952cc3d39e373c93565d
Reviewed-on: https://chromium-review.googlesource.com/c/1435943
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59118}

src/compiler/serializer-for-background-compilation.h

@@ -5,6 +5,7 @@
 #ifndef V8_COMPILER_SERIALIZER_FOR_BACKGROUND_COMPILATION_H_
 #define V8_COMPILER_SERIALIZER_FOR_BACKGROUND_COMPILATION_H_
 
+#include "src/base/optional.h"
 #include "src/handles.h"
 #include "src/maybe-handles.h"
 #include "src/zone/zone-containers.h"
@@ -143,6 +144,7 @@ class Hints {
   void Add(const Hints& other);
 
   void Clear();
+  bool IsEmpty() const;
 
  private:
   ZoneVector<Handle<Object>> constants_;
@@ -164,6 +166,7 @@ class SerializerForBackgroundCompilation {
  private:
   SerializerForBackgroundCompilation(JSHeapBroker* broker, Zone* zone,
                                      CompilationSubject function,
+                                     base::Optional<Hints> new_target,
                                      const HintsVector& arguments);
 
   void TraverseBytecode();
@@ -175,13 +178,16 @@ class SerializerForBackgroundCompilation {
 
   class Environment;
 
-  void ProcessCallOrConstruct(const Hints& callee, const HintsVector& arguments,
+  void ProcessCallOrConstruct(const Hints& callee,
+                              base::Optional<Hints> new_target,
+                              const HintsVector& arguments,
                               bool with_spread = false);
   void ProcessCallVarArgs(interpreter::BytecodeArrayIterator* iterator,
                           ConvertReceiverMode receiver_mode,
                           bool with_spread = false);
 
   Hints RunChildSerializer(CompilationSubject function,
+                           base::Optional<Hints> new_target,
                            const HintsVector& arguments, bool with_spread);
 
   JSHeapBroker* broker() const { return broker_; }