Handle null receiver in sloppy mode in %GetFrameDetails.

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 2a58b071a2353a6a114ffdb34ab1b64aef8c00b4..16164342a9a11ece230d99afc1842009c1f2d0a0 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -11500,11 +11500,13 @@ RUNTIME_FUNCTION(Runtime_GetFrameDetails) {
     if (receiver->IsUndefined()) {
       receiver = handle(function->global_proxy());
     } else {
-      DCHECK(!receiver->IsNull());
       Context* context = Context::cast(it.frame()->context());
       Handle<Context> native_context(Context::cast(context->native_context()));
-      receiver = Object::ToObject(
-          isolate, receiver, native_context).ToHandleChecked();
+      if (!Object::ToObject(isolate, receiver, native_context)
+               .ToHandle(&receiver)) {
+        // This only happens if the receiver is forcibly set in %_CallFunction.
+        return heap->undefined_value();
+      }
     }
   }
   details->set(kFrameDetailsReceiverIndex, *receiver);