Fix a bug in our handling of conditional expressions in test contexts.

src/full-codegen.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 586 matching lines @@
    public:
     explicit TestContext(FullCodeGenerator* codegen,
                          Label* true_label,
                          Label* false_label,
                          Label* fall_through)
         : ExpressionContext(codegen),
           true_label_(true_label),
           false_label_(false_label),
           fall_through_(fall_through) { }
 
+    static const TestContext* cast(const ExpressionContext* context) {
+      ASSERT(context->IsTest());
+      return reinterpret_cast<const TestContext*>(context);
+    }
+
+    Label* true_label() const { return true_label_; }
+    Label* false_label() const { return false_label_; }
+    Label* fall_through() const { return fall_through_; }
+
     virtual void Plug(bool flag) const;
     virtual void Plug(Register reg) const;
     virtual void Plug(Label* materialize_true, Label* materialize_false) const;
     virtual void Plug(Slot* slot) const;
     virtual void Plug(Handle<Object> lit) const;
     virtual void Plug(Heap::RootListIndex) const;
     virtual void PlugTOS() const;
     virtual void DropAndPlug(int count, Register reg) const;
     virtual void EmitLogicalLeft(BinaryOperation* expr,
                                  Label* eval_right,
@@ skipping 39 matching lines @@
 
   friend class NestedStatement;
 
   DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_H_