Roll tools/clang/ 2b9d966ec..ff84dc245 (41 commits)

https://chromium.googlesource.com/chromium/src/tools/clang/+log/2b9d966ec582..ff84dc245f6c

Roll clang llvmorg-18-init-14420-gea3a3b25-3:llvmorg-18-init-17730-gf670112a-3

Created with:
  roll-dep tools/clang

Change-Id: Icb9d17bb82a6b6da95a47cb6258307e2dc847408
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/116113
Commit-Queue: Alan Screen <awscreen@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index ba2b452..a747940 100644
--- a/DEPS
+++ b/DEPS
@@ -88,7 +88,7 @@
   # 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': '2b9d966ec582b984a9c1bfb6d9e2dc404595b196',
+  'clang_revision': 'ff84dc245f6c9228bc5b4bb8f61797aa8569c1ea',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling code_coverage
   # and whatever else without interference from each other.