[wasm] Fix user properties for exported wasm functions and add extensive tests.

src/wasm/wasm-objects.h

 // Copyright 2016 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_OBJECTS_H_
 #define V8_WASM_OBJECTS_H_
 
 #include "src/debug/debug.h"
 #include "src/debug/interface-types.h"
 #include "src/objects.h"
@@ skipping 176 matching lines @@
 
   static int32_t GrowMemory(Isolate*, Handle<WasmInstanceObject>,
                             uint32_t pages);
 
   uint32_t GetMaxMemoryPages();
 };
 
 // A WASM function that is wrapped and exported to JavaScript.
 class WasmExportedFunction : public JSFunction {
  public:
-  DECL_OOL_QUERY(WasmExportedFunction)
-  DECL_OOL_CAST(WasmExportedFunction)
+  WasmInstanceObject* instance();
+  int function_index();
 
-  DECL_ACCESSORS(instance, WasmInstanceObject)
-  DECL_INT_ACCESSORS(function_index)
-
-  enum {  // --
-    kInstanceIndex,
-    kFunctionIndexIndex,
-    kFieldCount
-  };
-
-  static const int kSize = JSFunction::kSize + kFieldCount * kPointerSize;
-  DEF_OFFSET(Instance)
-  DEF_OFFSET(FunctionIndex)
+  static WasmExportedFunction* cast(Object* object);
+  static bool IsWasmExportedFunction(Object* object);
 
   static Handle<WasmExportedFunction> New(Isolate* isolate,
                                           Handle<WasmInstanceObject> instance,
                                           MaybeHandle<String> maybe_name,
                                           int func_index, int arity,
                                           Handle<Code> export_wrapper);
 };
 
 // Information shared by all WasmCompiledModule objects for the same module.
 class WasmSharedModuleData : public FixedArray {
@@ skipping 470 matching lines @@
           kCompiledModuleOffset)
 ACCESSORS(WasmInstanceObject, memory_object, WasmMemoryObject,
           kMemoryObjectOffset)
 ACCESSORS(WasmInstanceObject, memory_buffer, JSArrayBuffer, kMemoryBufferOffset)
 ACCESSORS(WasmInstanceObject, globals_buffer, JSArrayBuffer,
           kGlobalsBufferOffset)
 ACCESSORS(WasmInstanceObject, debug_info, WasmDebugInfo, kDebugInfoOffset)
 ACCESSORS(WasmInstanceObject, directly_called_instances, FixedArray,
           kDirectlyCalledInstancesOffset)
 
-// WasmExportedFunction
-ACCESSORS(WasmExportedFunction, instance, WasmInstanceObject, kInstanceOffset)
-SMI_ACCESSORS(WasmExportedFunction, function_index, kFunctionIndexOffset)
-
 // WasmSharedModuleData
 ACCESSORS(WasmSharedModuleData, module_bytes, SeqOneByteString,
           kModuleBytesOffset)
 ACCESSORS(WasmSharedModuleData, script, Script, kScriptOffset)
 ACCESSORS(WasmSharedModuleData, asm_js_offset_table, ByteArray,
           kAsmJsOffsetTableOffset)
 ACCESSORS(WasmSharedModuleData, breakpoint_infos, FixedArray,
           kBreakPointInfosOffset)
 
 #define OPTIONAL_ACCESSOR(holder, name, offset)                  \
@@ skipping 23 matching lines @@
 #undef DECL_GETTER
 #undef DECL_OPTIONAL_ACCESSORS
 #undef DECL_OPTIONAL_GETTER
 
 #include "src/objects/object-macros-undef.h"
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_OBJECTS_H_