[turbofan] Initial import of SimplifiedOperatorReducer.

test/compiler-unittests/graph-unittest.h

Index: test/compiler-unittests/graph-unittest.h
diff --git a/test/compiler-unittests/graph-unittest.h b/test/compiler-unittests/graph-unittest.h
index 2a5ba731f6dd5a7515be3cf6dbd39b02c9fb401f..80ed6d334d5102b34ea4fb741a1e476d682331fd 100644
--- a/test/compiler-unittests/graph-unittest.h
+++ b/test/compiler-unittests/graph-unittest.h
@@ -20,12 +20,26 @@ class PrintableUnique;
 
 namespace compiler {
 
+using ::testing::Matcher;
+
+
 class GraphTest : public CommonOperatorTest {
  public:
   explicit GraphTest(int parameters = 1);
   virtual ~GraphTest();
 
  protected:
+  Node* Parameter(int32_t index);
+  Node* Float64Constant(double value);
+  Node* Int32Constant(int32_t value);
+  Node* NumberConstant(double value);
+  Node* HeapConstant(const PrintableUnique<HeapObject>& value);
+  Node* FalseConstant();
+  Node* TrueConstant();
+
+  Matcher<Node*> IsFalseConstant();
+  Matcher<Node*> IsTrueConstant();
+
   Graph* graph() { return &graph_; }
 
  private:
@@ -33,9 +47,6 @@ class GraphTest : public CommonOperatorTest {
 };
 
 
-using ::testing::Matcher;
-
-
 Matcher<Node*> IsBranch(const Matcher<Node*>& value_matcher,
                         const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsMerge(const Matcher<Node*>& control0_matcher,
@@ -50,6 +61,7 @@ Matcher<Node*> IsExternalConstant(
     const Matcher<ExternalReference>& value_matcher);
 Matcher<Node*> IsHeapConstant(
     const Matcher<PrintableUnique<HeapObject> >& value_matcher);
+Matcher<Node*> IsFloat64Constant(const Matcher<double>& value_matcher);
 Matcher<Node*> IsInt32Constant(const Matcher<int32_t>& value_matcher);
 Matcher<Node*> IsNumberConstant(const Matcher<double>& value_matcher);
 Matcher<Node*> IsPhi(const Matcher<Node*>& value0_matcher,