adjust for wasm-demo

src/wasm/decoder.h

 // 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.
 
 #ifndef V8_WASM_DECODER_H_
 #define V8_WASM_DECODER_H_
 
 #include "src/base/smart-pointers.h"
 #include "src/flags.h"
 #include "src/signature.h"
 #include "src/wasm/wasm-result.h"
 #include "src/zone-containers.h"
 
 namespace v8 {
 namespace internal {
 namespace wasm {
 
-#if DEBUG
 #define TRACE(...)                                    \
   do {                                                \
     if (FLAG_trace_wasm_decoder) PrintF(__VA_ARGS__); \
   } while (false)
-#else
-#define TRACE(...)
-#endif
 
 #if !(V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_ARM)
 #define UNALIGNED_ACCESS_OK 1
 #else
 #define UNALIGNED_ACCESS_OK 0
 #endif
 
 // A helper utility to decode bytes, integers, fields, varints, etc, from
 // a buffer of bytes.
 class Decoder {
@@ skipping 283 matching lines @@
   const byte* error_pt_;
   base::SmartArrayPointer<char> error_msg_;
 };
 
 #undef TRACE
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_DECODER_H_