[turbofan] Proper dead code elimination as regular reducer.

src/compiler/graph-visualizer.cc

Index: src/compiler/graph-visualizer.cc
diff --git a/src/compiler/graph-visualizer.cc b/src/compiler/graph-visualizer.cc
index 123b36185a65431931dd92accfc5acd50b226a49..313edb9b653a84adba88cd40b940cb09df56a404 100644
--- a/src/compiler/graph-visualizer.cc
+++ b/src/compiler/graph-visualizer.cc
@@ -256,7 +256,7 @@ void GraphVisualizer::PrintNode(Node* node, bool gray) {
   os_ << "    shape=\"record\"\n";
   switch (node->opcode()) {
     case IrOpcode::kEnd:
-    case IrOpcode::kDeadControl:
+    case IrOpcode::kDead:
     case IrOpcode::kStart:
       os_ << "    style=\"diagonals\"\n";
       break;