Remove usages of alloca() according to style guide.

src/compiler/machine-node-factory.h

Index: src/compiler/machine-node-factory.h
diff --git a/src/compiler/machine-node-factory.h b/src/compiler/machine-node-factory.h
index 7b2e5ff82b07dd9f93e4b841290ba4b3dd35f8a2..a2605d9fd21a7fd0db0028cfb22ae959d002a7ec 100644
--- a/src/compiler/machine-node-factory.h
+++ b/src/compiler/machine-node-factory.h
@@ -349,8 +349,7 @@ class MachineNodeFactory {
               MachineType* arg_types, Node** args, int n_args) {
     CallDescriptor* descriptor =
         Linkage::GetSimplifiedCDescriptor(ZONE(), MACHINE_SIG());
-    Node** passed_args =
-        static_cast<Node**>(alloca((n_args + 1) * sizeof(args[0])));
+    Node** passed_args = ZONE()->NewArray<Node*>(n_args + 1);
     passed_args[0] = function_address;
     for (int i = 0; i < n_args; ++i) {
       passed_args[i + 1] = args[i];