[turbofan] Avoid allocating rest parameters for spread calls.

src/builtins/builtins-constructor-gen.cc

Index: src/builtins/builtins-constructor-gen.cc
diff --git a/src/builtins/builtins-constructor-gen.cc b/src/builtins/builtins-constructor-gen.cc
index 705b766e6789982ed86c38289ba0a79becc61639..286683bc350b686368d59516a99ea817f37f28c9 100644
--- a/src/builtins/builtins-constructor-gen.cc
+++ b/src/builtins/builtins-constructor-gen.cc
@@ -17,6 +17,15 @@
 namespace v8 {
 namespace internal {
 
+void Builtins::Generate_ConstructForwardVarargs(MacroAssembler* masm) {
+  Generate_ForwardVarargs(masm, masm->isolate()->builtins()->Construct());
+}
+
+void Builtins::Generate_ConstructFunctionForwardVarargs(MacroAssembler* masm) {
+  Generate_ForwardVarargs(masm,
+                          masm->isolate()->builtins()->ConstructFunction());
+}
+
 typedef compiler::Node Node;
 
 Node* ConstructorBuiltinsAssembler::EmitFastNewClosure(Node* shared_info,