JSModuleNamespace does not have well defined CreationContext: current
implementation of JSReceiver::GetCreationContext crashes on CHECK.

R=lushnikov@chromium.org,yangguo@chromium.org

Bug: none
Change-Id: Ie2c0bfa39117d42d81f9709c21376c177b18e5ba
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1652559Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62128}