wasm: use strings for section names

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"
@@ skipping 285 matching lines @@
     TRACE("<end>\n");
     pc_ = limit_;
     return t;
   }
 
   // Converts the given value to a {Result}, copying the error if necessary.
   template <typename T>
   Result<T> toResult(T val) {
     Result<T> result;
     if (error_pc_) {
+      TRACE("Result error: %s\n", error_msg_.get());
       result.error_code = kError;
       result.start = start_;
       result.error_pc = error_pc_;
       result.error_pt = error_pt_;
       // transfer ownership of the error to the result.
       result.error_msg.Reset(error_msg_.Detach());
     } else {
       result.error_code = kSuccess;
     }
     result.val = val;
@@ skipping 82 matching lines @@
     return result;
   }
 };
 
 #undef TRACE
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_DECODER_H_