[static analyzer] be more specific when running removeDeadBindings.  Instead of seeing if the predecessor node was a non-StmtPoint, check if it is specifically a BlockEntrance node.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144340 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed