Fix unused lambda captures.

src/builtins/builtins-array.cc

Index: src/builtins/builtins-array.cc
diff --git a/src/builtins/builtins-array.cc b/src/builtins/builtins-array.cc
index c4453ee5abaf4b50ceec9ed906749ee808ea10f0..5f3bc4250b577428b0b841b66b3b074ac13d0f3b 100644
--- a/src/builtins/builtins-array.cc
+++ b/src/builtins/builtins-array.cc
@@ -318,7 +318,7 @@ void Builtins::Generate_FastArrayPush(compiler::CodeAssemblerState* state) {
   assembler.Bind(&default_label);
   {
     args.ForEach(
-        [&assembler, receiver, context, &arg_index](Node* arg) {
+        [&assembler, receiver, context](Node* arg) {
           Node* length = assembler.LoadJSArrayLength(receiver);
           assembler.CallRuntime(Runtime::kSetProperty, context, receiver,
                                 length, arg, assembler.SmiConstant(STRICT));