The preallocated JSAccessorPropertyDescriptor, JSDataPropertyDescriptor and
JSIteratorResult had the constructor field unset, which in turn causes
GetCreationContext() to fail for those instances.

R=verwaest@chromium.org
BUG=v8:4738
LOG=n

Review URL: https://codereview.chromium.org/1676823002

Cr-Commit-Position: refs/heads/master@{#33802}