Revert of Replace all remaining Oddball checks with new function

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 "src/base/atomic-utils.h"
 #include "src/macro-assembler.h"
 #include "src/objects.h"
 #include "src/property-descriptor.h"
 #include "src/v8.h"
 
@@ skipping 966 matching lines @@
   }
   if (result->IsHeapNumber()) {
     return static_cast<int32_t>(HeapNumber::cast(*result)->value());
   }
   thrower.Error("WASM.compileRun() failed: Return value should be number");
   return -1;
 }
 
 Handle<Object> GetWasmFunctionNameOrNull(Isolate* isolate, Handle<Object> wasm,
                                          uint32_t func_index) {
-  if (!wasm->IsUndefined(isolate)) {
+  if (!wasm->IsUndefined()) {
     Handle<ByteArray> func_names_arr_obj(
         ByteArray::cast(Handle<JSObject>::cast(wasm)->GetInternalField(
             kWasmFunctionNamesArray)),
         isolate);
     // TODO(clemens): Extract this from the module bytes; skip whole function
     // name table.
     Handle<Object> name;
     if (GetWasmFunctionNameFromTable(func_names_arr_obj, func_index)
             .ToHandle(&name)) {
       return name;
     }
   }
   return isolate->factory()->null_value();
 }
 
 Handle<String> GetWasmFunctionName(Isolate* isolate, Handle<Object> wasm,
                                    uint32_t func_index) {
   Handle<Object> name_or_null =
       GetWasmFunctionNameOrNull(isolate, wasm, func_index);
-  if (!name_or_null->IsNull(isolate)) {
-    return Handle<String>::cast(name_or_null);
-  }
+  if (!name_or_null->IsNull()) return Handle<String>::cast(name_or_null);
   return isolate->factory()->NewStringFromStaticChars("<WASM UNNAMED>");
 }
 
 bool IsWasmObject(Handle<JSObject> object) {
   // TODO(clemensh): Check wasm byte header once we store a copy of the bytes.
   return object->GetInternalFieldCount() == kWasmModuleInternalFieldCount &&
          object->GetInternalField(kWasmModuleCodeTable)->IsFixedArray() &&
          object->GetInternalField(kWasmMemArrayBuffer)->IsJSArrayBuffer() &&
          object->GetInternalField(kWasmFunctionNamesArray)->IsByteArray();
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8