[analyzer] Add regression test for the crash in PR16664.
[analyzer] Add regression test for the crash in PR16664.

This goes with r186925, which reverted Pavel's commit in r186498.

Also, add a correctness test for the future.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@187133 91177308-0d34-0410-b5e6-96231b3b80d8

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