[wasm] Add stack checks to loops.

src/wasm/wasm-module.cc

Index: src/wasm/wasm-module.cc
diff --git a/src/wasm/wasm-module.cc b/src/wasm/wasm-module.cc
index 3a4ac2dbef552e48cb2562ed785b3c3120a403b5..dfdc76f95086352b70ecd82a27794ff1a0666bb9 100644
--- a/src/wasm/wasm-module.cc
+++ b/src/wasm/wasm-module.cc
@@ -48,18 +48,6 @@ enum JSFunctionExportInternalField {
   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.