[turbofan] Fix typo in ControlReducer.

test/cctest/compiler/test-control-reducer.cc

Index: test/cctest/compiler/test-control-reducer.cc
diff --git a/test/cctest/compiler/test-control-reducer.cc b/test/cctest/compiler/test-control-reducer.cc
index f6d354767e7f40de5a7b40987fefd18499d5c419..c2b225ab009703a87fca31a8e9b24f671424070f 100644
--- a/test/cctest/compiler/test-control-reducer.cc
+++ b/test/cctest/compiler/test-control-reducer.cc
@@ -1189,11 +1189,25 @@ TEST(CNestedDiamonds_xyz) {
 }
 
 
-TEST(CDeadDiamond) {
+TEST(CUnusedDiamond1) {
   ControlReducerTester R;
   // if (p0) { } else { }
-  Diamond d(R, R.p0);
-  R.ReduceMergeIterative(R.start, d.merge);
+  Node* branch = R.graph.NewNode(R.common.Branch(), R.p0, R.start);
+  Node* if_true = R.graph.NewNode(R.common.IfTrue(), branch);
+  Node* if_false = R.graph.NewNode(R.common.IfFalse(), branch);
+  Node* merge = R.graph.NewNode(R.common.Merge(2), if_true, if_false);
+  R.ReduceMergeIterative(R.start, merge);
+}
+
+
+TEST(CUnusedDiamond2) {
+  ControlReducerTester R;
+  // if (p0) { } else { }
+  Node* branch = R.graph.NewNode(R.common.Branch(), R.p0, R.start);
+  Node* if_true = R.graph.NewNode(R.common.IfTrue(), branch);
+  Node* if_false = R.graph.NewNode(R.common.IfFalse(), branch);
+  Node* merge = R.graph.NewNode(R.common.Merge(2), if_false, if_true);
+  R.ReduceMergeIterative(R.start, merge);
 }