[turbofan] Use appropriate type for NodeId.

src/compiler/schedule.cc

 // Copyright 2013 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/schedule.h"
 
 #include "src/compiler/node.h"
 #include "src/compiler/node-properties.h"
 #include "src/ostreams.h"
 
@@ skipping 127 matching lines @@
 
 BasicBlock* Schedule::block(Node* node) const {
   if (node->id() < static_cast<NodeId>(nodeid_to_block_.size())) {
     return nodeid_to_block_[node->id()];
   }
   return NULL;
 }
 
 
 bool Schedule::IsScheduled(Node* node) {
-  int length = static_cast<int>(nodeid_to_block_.size());
-  if (node->id() >= length) return false;
+  if (node->id() >= nodeid_to_block_.size()) return false;
   return nodeid_to_block_[node->id()] != NULL;
 }
 
 
 BasicBlock* Schedule::GetBlockById(BasicBlock::Id block_id) {
   DCHECK(block_id.ToSize() < all_blocks_.size());
   return all_blocks_[block_id.ToSize()];
 }
 
 
@@ skipping 157 matching lines @@
 }
 
 
 void Schedule::SetControlInput(BasicBlock* block, Node* node) {
   block->set_control_input(node);
   SetBlockForNode(block, node);
 }
 
 
 void Schedule::SetBlockForNode(BasicBlock* block, Node* node) {
-  int length = static_cast<int>(nodeid_to_block_.size());
-  if (node->id() >= length) {
+  if (node->id() >= nodeid_to_block_.size()) {
     nodeid_to_block_.resize(node->id() + 1);
   }
   nodeid_to_block_[node->id()] = block;
 }
 
 
 std::ostream& operator<<(std::ostream& os, const Schedule& s) {
   for (BasicBlock* block : *s.rpo_order()) {
     os << "--- BLOCK B" << block->rpo_number();
     if (block->deferred()) os << " (deferred)";
@@ skipping 35 matching lines @@
       }
       os << "\n";
     }
   }
   return os;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8