[clang] [TBAA] Don't emit pointer-tbaa for void pointers. (PR #122116)

[Andrew Pinski via cfe-commits]

pinskia wrote:

Note GCC's testcase testsuite/gcc.dg/alias-14.c is testcase for this extension: "as an extension we consider void * universal. Writes to it should alias."

https://github.com/llvm/llvm-project/pull/122116