Oilpan: assertObjectHasGCInfo should not allow access to orphaned pages
Oilpan: assertObjectHasGCInfo should not allow access to orphaned pages

This CL removes ASSERT(page->orphaned() || ...) from assertObjectHasGCInfo(),
since orphaned pages must not be accessed in any way.

BUG=475801

Review URL: https://codereview.chromium.org/1159703002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@196375 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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