Add testing case for r178797

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178818 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Fully-covered switch for families in isTrackedFamily()

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178820 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Updated the testcase.

Missed check added to testMallocFreeNoWarn().
Removed FIXMEs as the current behaviour is considered acceptable now.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178824 91177308-0d34-0410-b5e6-96231b3b80d8
Add a module testcase with a using declaration.

Thanks a lot to Richard Smith for the suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178825 91177308-0d34-0410-b5e6-96231b3b80d8