Revert of [wasm] Master CL for Binary 0xC changes.

test/fuzzer/wasm-code.cc

 // Copyright 2016 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 <stddef.h>
 #include <stdint.h>
 
 #include "include/v8.h"
 #include "src/isolate.h"
 #include "src/objects.h"
@@ skipping 24 matching lines @@
   v8::Context::Scope context_scope(support->GetContext());
   v8::TryCatch try_catch(isolate);
 
   v8::internal::AccountingAllocator allocator;
   v8::internal::Zone zone(&allocator);
 
   TestSignatures sigs;
 
   WasmModuleBuilder builder(&zone);
 
-  v8::internal::wasm::WasmFunctionBuilder* f =
-      builder.AddFunction(sigs.i_iii());
+  uint16_t f1_index = builder.AddFunction();
+  WasmFunctionBuilder* f = builder.FunctionAt(f1_index);
+  f->SetSignature(sigs.i_iii());
   f->EmitCode(data, static_cast<uint32_t>(size));
   f->SetExported();
   f->SetName("main", 4);
 
   ZoneBuffer buffer(&zone);
   builder.WriteTo(buffer);
 
   v8::internal::wasm::testing::SetupIsolateForWasmModule(i_isolate);
 
   v8::internal::HandleScope scope(i_isolate);
@@ skipping 42 matching lines @@
           __FILE__, __LINE__,
           "Interpreter result (%d) != compiled module result (%d). Hash: %u",
           result_interpreted, result_compiled,
           v8::internal::StringHasher::HashSequentialString(
               data, static_cast<int>(size), WASM_CODE_FUZZER_HASH_SEED));
     }
     CHECK_EQ(result_interpreted, result_compiled);
   }
   return 0;
 }