Update prebuilt Clang to r346389.

clang 8.0.5 (based on r346389) from build 5151855.
Test: N/A

Change-Id: I0be6defcb16d1504fc5f44ca241716af167c7eba
Signed-off-by: Akhil Narang <akhilnarang.1999@gmail.com>
2521 files changed