[test] Remove deprecated cctest/test-node-algorithm tests.

test/cctest/compiler/test-graph-visualizer.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/v8.h"
 #include "test/cctest/cctest.h"
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/graph-visualizer.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node.h"
 #include "src/compiler/operator.h"
 #include "src/compiler/schedule.h"
 #include "src/compiler/scheduler.h"
 #include "src/compiler/source-position.h"
 #include "src/compiler/verifier.h"
 
 using namespace v8::internal;
 using namespace v8::internal::compiler;
 
+static Operator dummy_operator(IrOpcode::kParameter, Operator::kNoWrite,
+                               "dummy", 0, 0, 0, 1, 0, 0);
+
+
 TEST(NodeWithNullInputReachableFromEnd) {
   HandleAndZoneScope scope;
   Graph graph(scope.main_zone());
   CommonOperatorBuilder common(scope.main_zone());
 
   Node* start = graph.NewNode(common.Start(0));
   graph.SetStart(start);
   Node* k = graph.NewNode(common.Int32Constant(0));
   Node* phi = graph.NewNode(common.Phi(kMachAnyTagged, 1), k, start);
   phi->ReplaceInput(0, NULL);
@@ skipping 53 matching lines @@
   graph.SetStart(start);
   Node* merge = graph.NewNode(common.Merge(2), start, start);
   merge->ReplaceInput(1, NULL);
   graph.SetEnd(merge);
 
   OFStream os(stdout);
   os << AsDOT(graph);
   SourcePositionTable table(&graph);
   os << AsJSON(graph, &table);
 }
+
+
+TEST(NodeNetworkOfDummiesReachableFromEnd) {
+  HandleAndZoneScope scope;
+  Graph graph(scope.main_zone());
+  CommonOperatorBuilder common(scope.main_zone());
+
+  Node* start = graph.NewNode(common.Start(0));
+  graph.SetStart(start);
+  Node* n2 = graph.NewNode(&dummy_operator, graph.start());
+  Node* n3 = graph.NewNode(&dummy_operator, graph.start());
+  Node* n4 = graph.NewNode(&dummy_operator, n2);
+  Node* n5 = graph.NewNode(&dummy_operator, n2);
+  Node* n6 = graph.NewNode(&dummy_operator, n3);
+  Node* n7 = graph.NewNode(&dummy_operator, n3);
+  Node* n8 = graph.NewNode(&dummy_operator, n5);
+  Node* n9 = graph.NewNode(&dummy_operator, n5);
+  Node* n10 = graph.NewNode(&dummy_operator, n9);
+  Node* n11 = graph.NewNode(&dummy_operator, n9);
+  Node* end_dependencies[6] = {n4, n8, n10, n11, n6, n7};
+  Node* end = graph.NewNode(&dummy_operator, 6, end_dependencies);
+  graph.SetEnd(end);
+
+  OFStream os(stdout);
+  os << AsDOT(graph);
+  SourcePositionTable table(&graph);
+  os << AsJSON(graph, &table);
+}