[debugger] be more lenient about argument type in %DebugGetProperty.

src/runtime/runtime-debug.cc

 // Copyright 2014 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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/debug/debug-evaluate.h"
 #include "src/debug/debug-frames.h"
 #include "src/debug/debug-scopes.h"
@@ skipping 390 matching lines @@
 
   return *isolate->factory()->NewJSArrayWithElements(details);
 }
 
 
 RUNTIME_FUNCTION(Runtime_DebugGetProperty) {
   HandleScope scope(isolate);
 
   DCHECK(args.length() == 2);
 
-  CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, obj, 0);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
 
   LookupIterator it(obj, name);
   return *DebugGetProperty(&it);
 }
 
 
 // Return the property type calculated from the property details.
 // args[0]: smi with property details.
 RUNTIME_FUNCTION(Runtime_DebugPropertyTypeFromDetails) {
@@ skipping 1393 matching lines @@
   Handle<Script> script = Handle<Script>(Script::cast(script_val->value()));
 
   Handle<wasm::WasmDebugInfo> debug_info =
       wasm::GetDebugInfo(handle(script->wasm_object(), isolate));
   return *wasm::WasmDebugInfo::DisassembleFunction(
       debug_info, script->wasm_function_index());
 }
 
 }  // namespace internal
 }  // namespace v8