[wasm] Use more precise types for some WASM objects.

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/objects-inl.h"
 #include "src/wasm/managed.h"
 
@@ skipping 21 matching lines @@
   void set_##name(type* value)
 
 // Representation of a WebAssembly.Module JavaScript-level object.
 class WasmModuleObject : public JSObject {
  public:
   // TODO(titzer): add the brand as an internal field instead of a property.
   enum Fields { kCompiledModule, kFieldCount };
 
   DECLARE_CASTS(WasmModuleObject);
 
-  WasmCompiledModule* compiled_module();
+  WasmCompiledModule* get_compiled_module();
   wasm::WasmModule* module();
   int num_functions();
   bool is_asm_js();
   int GetAsmWasmSourcePosition(int func_index, int byte_offset);
   WasmDebugInfo* debug_info();
   void set_debug_info(WasmDebugInfo* debug_info);
   MaybeHandle<String> GetFunctionName(Isolate* isolate, int func_index);
 
   static Handle<WasmModuleObject> New(
       Isolate* isolate, Handle<WasmCompiledModule> compiled_module);
@@ skipping 246 matching lines @@
                                     int func_index, int byte_offset);
 };
 
 #undef DECLARE_ACCESSORS
 #undef DECLARE_OPTIONAL_ACCESSORS
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_OBJECTS_H_