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

src/wasm/wasm-result.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_RESULT_H_
 #define V8_WASM_RESULT_H_
 
 #include <memory>
 
 #include "src/base/compiler-specific.h"
 
 #include "src/handles.h"
 #include "src/globals.h"
 
 namespace v8 {
 namespace internal {
 
 class Isolate;
 
 namespace wasm {
 
 // Error codes for programmatic checking of the decoder's verification.
 enum ErrorCode {
   kSuccess,
-  kError,  // TODO(titzer): introduce real error codes
+  kError,                 // TODO(titzer): remove me
+  kOutOfMemory,           // decoder ran out of memory
+  kEndOfCode,             // end of code reached prematurely
+  kInvalidOpcode,         // found invalid opcode
+  kUnreachableCode,       // found unreachable code
+  kImproperContinue,      // improperly nested continue
+  kImproperBreak,         // improperly nested break
+  kReturnCount,           // return count mismatch
+  kTypeError,             // type mismatch
+  kInvalidLocalIndex,     // invalid local
+  kInvalidGlobalIndex,    // invalid global
+  kInvalidFunctionIndex,  // invalid function
+  kInvalidMemType         // invalid memory type
 };
 
 // The overall result of decoding a function or a module.
 template <typename T>
 struct Result {
   Result() : val(), error_code(kSuccess), start(nullptr), error_pc(nullptr) {}
   Result(Result&& other) { *this = std::move(other); }
   Result& operator=(Result&& other) {
     MoveFrom(other);
     val = other.val;
@@ skipping 79 matching lines @@
 
   i::Isolate* isolate_;
   const char* context_;
   i::Handle<i::Object> exception_;
 };
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif