Revert "[clang] Use a StringRef instead of a raw char pointer to store builtin...

Revert "[clang] Use a StringRef instead of a raw char pointer to store builtin and call information"
Revert "Fix lldb option handling since e953ae5b (part 2)"
Revert "Fix lldb option handling since e953ae5b"

GCC build hangs on this bot https://lab.llvm.org/buildbot/#/builders/37/builds/19104
compiling CMakeFiles/obj.clangBasic.dir/Targets/AArch64.cpp.d

The bot uses GNU 11.3.0, but I can reproduce locally with gcc (Debian 12.2.0-3) 12.2.0.

This reverts commit caa71355.
This reverts commit 06b90e2e.
This reverts commit e953ae5b.