Use the correct oracle in TestContext::BuildBranch.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 278a298435e56de0d7b0440d5d9e60e21f731349..816f386d4fe8bbd2ff59ee177edd24a27e9d9bcd 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -671,10 +671,12 @@ class TestContext: public AstContext {
  public:
   TestContext(HGraphBuilder* owner,
               Expression* condition,
+              TypeFeedbackOracle* oracle,
               HBasicBlock* if_true,
               HBasicBlock* if_false)
       : AstContext(owner, Expression::kTest),
         condition_(condition),
+        oracle_(oracle),
         if_true_(if_true),
         if_false_(if_false) {
   }
@@ -689,6 +691,7 @@ class TestContext: public AstContext {
   }
 
   Expression* condition() const { return condition_; }
+  TypeFeedbackOracle* oracle() const { return oracle_; }
   HBasicBlock* if_true() const { return if_true_; }
   HBasicBlock* if_false() const { return if_false_; }
 
@@ -698,6 +701,7 @@ class TestContext: public AstContext {
   void BuildBranch(HValue* value);
 
   Expression* condition_;
+  TypeFeedbackOracle* oracle_;
   HBasicBlock* if_true_;
   HBasicBlock* if_false_;
 };