Add libllvm and liblldb source files to enable WITH_ASAN build

This is another part of fixing the WITH_ASAN build. Some additional
source files had to be added to libllvm and liblldb, since the ASan
instrumentation causes symbols in those files to be referenced.

Reported by: markj
PR: 276597
MFC after: 3 days

(cherry picked from commit 5c38ea60a04199dae2c6e5db82461e7275c7def6)