[turbofan] Refactor serializer to include receiver as argument

The receiver is now passed around as the first argument in the Hints array.
This allows for Construct bytecodes to not supply it at all.

Bug: v8:7790
Change-Id: Iae57095526dbc52ed12e0f884875ceb07280c371
Reviewed-on: https://chromium-review.googlesource.com/c/1426118
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59021}

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

@@ -149,7 +149,6 @@ class SerializerForBackgroundCompilation {
  private:
   SerializerForBackgroundCompilation(JSHeapBroker* broker, Zone* zone,
                                      FunctionBlueprint function,
-                                     const Hints& receiver,
                                      const HintsVector& arguments);
 
   void TraverseBytecode();
@@ -165,7 +164,7 @@ class SerializerForBackgroundCompilation {
   JSHeapBroker* broker() const { return broker_; }
   Environment* environment() const { return environment_; }
 
-  void ProcessCallOrConstruct(const Hints& callee, const Hints& receiver,
+  void ProcessCallOrConstruct(const Hints& callee,
                               const HintsVector& arguments);
   void ProcessCallVarArgs(interpreter::BytecodeArrayIterator* iterator,
                           ConvertReceiverMode receiver_mode);