[wasm] Add stack checks to loops.

src/wasm/wasm-module.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 <memory>
 
 #include "src/base/atomic-utils.h"
 #include "src/code-stubs.h"
 
 #include "src/macro-assembler.h"
@@ skipping 30 matching lines @@
 namespace {
 
 static const int kPlaceholderMarker = 1000000000;
 
 enum JSFunctionExportInternalField {
   kInternalModuleInstance,
   kInternalArity,
   kInternalSignature
 };
 
-// Internal constants for the layout of the module object.
-enum WasmInstanceObjectFields {
-  kWasmCompiledModule = 0,
-  kWasmModuleFunctionTable,
-  kWasmModuleCodeTable,
-  kWasmMemObject,
-  kWasmMemArrayBuffer,
-  kWasmGlobalsArrayBuffer,
-  kWasmDebugInfo,
-  kWasmModuleInternalFieldCount
-};
-
 enum WasmImportData {
   kImportKind,         // Smi. an ExternalKind
   kImportGlobalType,   // Smi. Type for globals.
   kImportIndex,        // Smi. index for the import.
   kModuleName,         // String
   kFunctionName,       // maybe String
   kOutputCount,        // Smi. an uint32_t
   kSignature,          // ByteArray. A copy of the data in FunctionSig
   kWasmImportDataSize  // Sentinel value.
 };
@@ skipping 2205 matching lines @@
   WasmCompiledModule* compiled_module =
       WasmCompiledModule::cast(instance->GetInternalField(kWasmCompiledModule));
   CHECK(compiled_module->has_weak_module_object());
   CHECK(compiled_module->ptr_to_weak_module_object()->cleared());
 }
 
 }  // namespace testing
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8