tree 3d856870ee5a9bd1c228670ede34c98ff71142b1
parent 2fcadbeecbbc0b48dc92b9ce778e5c7a53292505
author Anna Zaks <ganna@apple.com> 1364342329 +0000
committer Anna Zaks <ganna@apple.com> 1364342329 +0000

[analyzer] Make sure IDC works for ‘NSContainer value/key is nil’ checks.

Register the nil tracking visitors with the region and refactor trackNullOrUndefValue a bit.

Also adds the cast and paren stripping before checking if the value is an OpaqueValueExpr
or ExprWithCleanups.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178093 91177308-0d34-0410-b5e6-96231b3b80d8