[clang] [libcxxabi] [lldb] [llvm] [mlir] [polly] [RFC][NFCI][IR] Rename isNullValue and getNullValue to isZeroValue and getZeroValue (PR #195687)

[Sergei Barannikov via llvm-commits]

s-barannikov wrote:

> This can't be split into per-component because it changes the core library.

You can add the new methods keeping the old ones, unless I'm missing something. After all components switch to use the new methods, the old ones can be removed.


https://github.com/llvm/llvm-project/pull/195687