Updated openstack/openstack
Project: openstack/heat  5e9fad18cd9b37b5d136c1fbd84c2d97dc69744e
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Fix unused variables 1/2: add more asserts

Add test asserts for some unused local variables to make test better.

Change-Id: I8c830b4680a2ffe8bf1b7cbd44cd1dce5b27c919