[Ignition/turbo] Add a CallWithSpread bytecode.

src/ast/ast.h

Index: src/ast/ast.h
diff --git a/src/ast/ast.h b/src/ast/ast.h
index 12e8de97158c3d44c8b6c28f469aec59b3642461..45189c63ff8023bff4af6231fdf4c20c4339c01f 100644
--- a/src/ast/ast.h
+++ b/src/ast/ast.h
@@ -1870,6 +1870,10 @@ class Call final : public Expression {
   }
   void MarkTail() { bit_field_ = IsTailField::update(bit_field_, true); }
 
+  bool only_last_arg_is_spread() {
+    return !arguments_->is_empty() && arguments_->last()->IsSpread();
+  }
+
   enum CallType {
     GLOBAL_CALL,
     WITH_CALL,
@@ -1969,6 +1973,10 @@ class CallNew final : public Expression {
     set_is_monomorphic(true);
   }
 
+  bool only_last_arg_is_spread() {
+    return !arguments_->is_empty() && arguments_->last()->IsSpread();
+  }
+
  private:
   friend class AstNodeFactory;