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

test/fuzzer/wasm-section-fuzzers.cc

Index: test/fuzzer/wasm-section-fuzzers.cc
diff --git a/test/fuzzer/wasm-section-fuzzers.cc b/test/fuzzer/wasm-section-fuzzers.cc
index b9be28df94012077435dce2f340fcbc6b6ac96f4..63bad10bee1cecbb9da7332cadb1e22e656f1247 100644
--- a/test/fuzzer/wasm-section-fuzzers.cc
+++ b/test/fuzzer/wasm-section-fuzzers.cc
@@ -15,7 +15,7 @@
 
 using namespace v8::internal::wasm;
 
-int fuzz_wasm_section(WasmSectionCode section, const uint8_t* data,
+int fuzz_wasm_section(WasmSection::Code section, const uint8_t* data,
                       size_t size) {
   v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get();
   v8::Isolate* isolate = support->GetIsolate();
@@ -38,18 +38,12 @@
   ZoneBuffer buffer(&zone);
   buffer.write_u32(kWasmMagic);
   buffer.write_u32(kWasmVersion);
-  if (section == kNameSectionCode) {
-    buffer.write_u8(kUnknownSectionCode);
-    buffer.write_size(size + kNameStringLength + 1);
-    buffer.write_u8(kNameStringLength);
-    buffer.write(reinterpret_cast<const uint8_t*>(kNameString),
-                 kNameStringLength);
-    buffer.write(data, size);
-  } else {
-    buffer.write_u8(section);
-    buffer.write_size(size);
-    buffer.write(data, size);
-  }
+  const char* name = WasmSection::getName(section);
+  size_t length = WasmSection::getNameLength(section);
+  buffer.write_size(length);  // Section name string size.
+  buffer.write(reinterpret_cast<const uint8_t*>(name), length);
+  buffer.write_u32v(static_cast<uint32_t>(size));
+  buffer.write(data, size);
 
   ErrorThrower thrower(i_isolate, "decoder");