Roll tools/clang/ 15a4172c5..db6297931 (5 commits)

https://chromium.googlesource.com/chromium/src/tools/clang/+log/15a4172c51d9..db6297931a88

Created with:
  roll-dep tools/clang

Change-Id: I983fd33123a947b950469f59f015d9247cd521bd
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/79013
Auto-Submit: K. Moon <kmoon@chromium.org>
Commit-Queue: Hui Yingst <nigi@chromium.org>
Reviewed-by: Hui Yingst <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index 50bf639..af2408b 100644
--- a/DEPS
+++ b/DEPS
@@ -45,7 +45,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling clang
   # and whatever else without interference from each other.
-  'clang_revision': '15a4172c51d9c03bdb09637aa2ef611d26e260b9',
+  'clang_revision': 'db6297931a88c9f8375259082b48302ee61ea152',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling clang_dsymutil
   # and whatever else without interference from each other.