[wasm] Disassemble wasm code from script

src/wasm/ast-decoder.cc

 // 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 "src/signature.h"
 
 #include "src/bit-vector.h"
 #include "src/flags.h"
 #include "src/handles.h"
 #include "src/zone-containers.h"
@@ skipping 1503 matching lines @@
   decoder.DecodeLocalDecls(decls);
   const byte* pc = decoder.pc();
   if (body.start != decoder.pc()) {
     os << "// locals: ";
     for (auto p : decls.local_types) {
       LocalType type = p.first;
       uint32_t count = p.second;
       os << " " << count << " " << WasmOpcodes::TypeName(type);
     }
     os << std::endl;
+    ++line_nr;
 
     for (const byte* locals = body.start; locals < pc; locals++) {
       os << (locals == body.start ? "0x" : " 0x") << AsHex(*locals, 2) << ",";
     }
     os << std::endl;
     ++line_nr;
   }
 
   os << "// body: " << std::endl;
   ++line_nr;
@@ skipping 95 matching lines @@
 BitVector* AnalyzeLoopAssignmentForTesting(Zone* zone, size_t num_locals,
                                            const byte* start, const byte* end) {
   FunctionBody body = {nullptr, nullptr, nullptr, start, end};
   WasmFullDecoder decoder(zone, nullptr, body);
   return decoder.AnalyzeLoopAssignmentForTesting(start, num_locals);
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8