Add even more sanity checks to ti_redefine.cc and skips

Add some additional sanity checks so its more obvious if b/147207934
occurs on any other gcs. The issue is that VisitObjects was missing
some objects causing assumptions to be broken.

Also add blanket skips for all structural redefinition tests to CMS
runs. Since VisitObjects is not reliable on CMS we cannot really use
the structural redefinition feature there.

Test: ./test.py --host
Bug: 147207934
Change-Id: I52aa4f3defb352e988f18b5ab494c9f3a028f0e2
2 files changed