[clang] [lldb] Use CLANG_RESOURCE_DIR more consistently (PR #103388)

[Tulio Magno Quites Machado Filho via cfe-commits]

tuliom wrote:

> Do we need anything more to make progress with this PR?

@kimgr Do you have committer permission? Would you like some help to get this merged?

https://github.com/llvm/llvm-project/pull/103388