Simplified the full codegens by removing the Expression::kTestValue...

src/ast.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 183 matching lines @@
  public:
   enum Context {
     // Not assigned a context yet, or else will not be visited during
     // code generation.
     kUninitialized,
     // Evaluated for its side effects.
     kEffect,
     // Evaluated for its value (and side effects).
     kValue,
     // Evaluated for control flow (and side effects).
-    kTest,
-    // Evaluated for control flow and side effects.  Value is also
-    // needed if true.
-    kValueTest,
-    // Evaluated for control flow and side effects.  Value is also
-    // needed if false.
-    kTestValue
+    kTest
   };
 
   Expression() : bitfields_(0) {}
 
   explicit Expression(Expression* other);
 
   virtual Expression* AsExpression()  { return this; }
 
   virtual bool IsValidLeftHandSide() { return false; }
 
@@ skipping 1876 matching lines @@
 
   // Holds the result of copying an expression.
   Expression* expr_;
   // Holds the result of copying a statement.
   Statement* stmt_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_