Fix invalid use of int in Zone.

src/compiler/instruction-selector.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/instruction-selector.h"
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/pipeline.h"
@@ skipping 1046 matching lines @@
   Emit(kArchJmp, g.NoOutput(), g.Label(target))->MarkAsControl();
 }
 
 
 void InstructionSelector::VisitSwitch(Node* node, BasicBlock** branches,
                                       size_t branch_count) {
   OperandGenerator g(this);
   Node* const value = node->InputAt(0);
   size_t const input_count = branch_count + 1;
   InstructionOperand* const inputs =
-      zone()->NewArray<InstructionOperand>(static_cast<int>(input_count));
+      zone()->NewArray<InstructionOperand>(input_count);
   inputs[0] = g.UseRegister(value);
   for (size_t index = 0; index < branch_count; ++index) {
     inputs[index + 1] = g.Label(branches[index]);
   }
   Emit(kArchSwitch, 0, nullptr, input_count, inputs, 0, nullptr)
       ->MarkAsControl();
 }
 
 
 void InstructionSelector::VisitReturn(Node* value) {
@@ skipping 134 matching lines @@
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
   return MachineOperatorBuilder::Flag::kNoFlags;
 }
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8