[turbofan] Add schedule to visualizer output

src/compiler/schedule.cc

Index: src/compiler/schedule.cc
diff --git a/src/compiler/schedule.cc b/src/compiler/schedule.cc
index f30e5f61ceb9d944a8afdbe0c16ba2a5822f4a62..8b4393f460d38aa447d6df6126ead86c19261ed8 100644
--- a/src/compiler/schedule.cc
+++ b/src/compiler/schedule.cc
@@ -321,53 +321,6 @@ void Schedule::SetBlockForNode(BasicBlock* block, Node* node) {
   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)";
-    if (block->PredecessorCount() != 0) os << " <- ";
-    bool comma = false;
-    for (BasicBlock const* predecessor : block->predecessors()) {
-      if (comma) os << ", ";
-      comma = true;
-      os << "B" << predecessor->rpo_number();
-    }
-    os << " ---\n";
-    for (Node* node : *block) {
-      os << "  " << *node;
-      if (NodeProperties::IsTyped(node)) {
-        Bounds bounds = NodeProperties::GetBounds(node);
-        os << " : ";
-        bounds.lower->PrintTo(os);
-        if (!bounds.upper->Is(bounds.lower)) {
-          os << "..";
-          bounds.upper->PrintTo(os);
-        }
-      }
-      os << "\n";
-    }
-    BasicBlock::Control control = block->control();
-    if (control != BasicBlock::kNone) {
-      os << "  ";
-      if (block->control_input() != NULL) {
-        os << *block->control_input();
-      } else {
-        os << "Goto";
-      }
-      os << " -> ";
-      comma = false;
-      for (BasicBlock const* successor : block->successors()) {
-        if (comma) os << ", ";
-        comma = true;
-        os << "B" << successor->rpo_number();
-      }
-      os << "\n";
-    }
-  }
-  return os;
-}
-
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8