[Interpreter] Add interpreter support for compare ops and ToBoolean.

test/unittests/interpreter/bytecodes-unittest.cc

-// Copyright 2014 the V8 project authors. All rights reserved.
+// Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <vector>
 
 #include "src/v8.h"
 
 #include "src/interpreter/bytecodes.h"
 #include "test/unittests/test-utils.h"
 
@@ skipping 42 matching lines @@
     Register r = Register::FromParameterIndex(i, parameter_count);
     uint8_t operand = r.ToOperand();
     operand_count[operand] += 1;
     CHECK_EQ(operand_count[operand], 1);
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8