Eliminate some false positives due to a thinko in the "'blah' is
always zero in this context" warning logic. Also, make the diagnostic
itself more precise when referring to pointer values ("NULL" vs. "zero").


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86143 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed