Update clang-tools build to clang-r450784d

Bug: 219872355
Test: presubmit
Change-Id: I05db5bfbf8562ec8a0ce0f36e4e2446bbb705da0
(cherry picked from commit 70645edd80f009f24e39f1ceade94c65b037736e)
Merged-In: I05db5bfbf8562ec8a0ce0f36e4e2446bbb705da0
1 file changed