[CMake][TableGen] Make TableGen CMake functions compatible with CMP0116#72333

akirchhoff-modular wants to merge 1 commit intollvm:mainllvm/llvm-project:mainfrom

akirchhoff-modular:akirchhoff/tablegen-cmp0116-compatakirchhoff-modular/llvm-project:akirchhoff/tablegen-cmp0116-compatCopy head branch name to clipboard