Display a meaningfull error message when trying to capture a stack trace to a proxy.

src/isolate.cc

 // Copyright 2012 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/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
@@ skipping 337 matching lines @@
         isolate->factory()->NewFixedArrayWithHoles(new_capacity);
     for (int i = 0; i < cur_position; i++) {
       new_elements->set(i, elements->get(i));
     }
     elements = new_elements;
   }
   DCHECK(new_size <= elements->length());
   return elements;
 }
 
-Handle<Object> Isolate::CaptureSimpleStackTrace(Handle<JSObject> error_object,
+Handle<Object> Isolate::CaptureSimpleStackTrace(Handle<JSReceiver> error_object,
                                                 Handle<Object> caller) {
   // Get stack trace limit.
   Handle<JSObject> error = error_function();
   Handle<String> stackTraceLimit =
       factory()->InternalizeUtf8String("stackTraceLimit");
   DCHECK(!stackTraceLimit.is_null());
   Handle<Object> stack_trace_limit =
       JSReceiver::GetDataProperty(error, stackTraceLimit);
   if (!stack_trace_limit->IsNumber()) return factory()->undefined_value();
   int limit = FastD2IChecked(stack_trace_limit->Number());
@@ skipping 80 matching lines @@
     }
   }
   elements->set(0, Smi::FromInt(sloppy_frames));
   elements->Shrink(cursor);
   Handle<JSArray> result = factory()->NewJSArrayWithElements(elements);
   result->set_length(Smi::FromInt(cursor));
   // TODO(yangguo): Queue this structured stack trace for preprocessing on GC.
   return result;
 }
 
-MaybeHandle<JSObject> Isolate::CaptureAndSetDetailedStackTrace(
-    Handle<JSObject> error_object) {
+MaybeHandle<JSReceiver> Isolate::CaptureAndSetDetailedStackTrace(
+    Handle<JSReceiver> error_object) {
   if (capture_stack_trace_for_uncaught_exceptions_) {
     // Capture stack trace for a detailed exception message.
     Handle<Name> key = factory()->detailed_stack_trace_symbol();
     Handle<JSArray> stack_trace = CaptureCurrentStackTrace(
         stack_trace_for_uncaught_exceptions_frame_limit_,
         stack_trace_for_uncaught_exceptions_options_);
     RETURN_ON_EXCEPTION(
-        this, JSObject::SetProperty(error_object, key, stack_trace, STRICT),
-        JSObject);
+        this, JSReceiver::SetProperty(error_object, key, stack_trace, STRICT),
+        JSReceiver);
   }
   return error_object;
 }
 
-
-MaybeHandle<JSObject> Isolate::CaptureAndSetSimpleStackTrace(
-    Handle<JSObject> error_object, Handle<Object> caller) {
+MaybeHandle<JSReceiver> Isolate::CaptureAndSetSimpleStackTrace(
+    Handle<JSReceiver> error_object, Handle<Object> caller) {
   // Capture stack trace for simple stack trace string formatting.
   Handle<Name> key = factory()->stack_trace_symbol();
   Handle<Object> stack_trace = CaptureSimpleStackTrace(error_object, caller);
   RETURN_ON_EXCEPTION(
-      this, JSObject::SetProperty(error_object, key, stack_trace, STRICT),
-      JSObject);
+      this, JSReceiver::SetProperty(error_object, key, stack_trace, STRICT),
+      JSReceiver);
   return error_object;
 }
 
 
 Handle<JSArray> Isolate::GetDetailedStackTrace(Handle<JSObject> error_object) {
   Handle<Name> key_detailed = factory()->detailed_stack_trace_symbol();
   Handle<Object> stack_trace =
       JSReceiver::GetDataProperty(error_object, key_detailed);
   if (stack_trace->IsJSArray()) return Handle<JSArray>::cast(stack_trace);
 
@@ skipping 2497 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8