Roll DEPS for clang to 0235fed9.

AKA roll Clang 313786:315613.
https://chromium.googlesource.com/chromium/src/tools/clang/+log/1bc4a898..0235fed9

TBR=dsinclair@chromium.org

Change-Id: I5077a699f51a91aa45868aa309454266cf8a31d6
Reviewed-on: https://pdfium-review.googlesource.com/20695
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index f4bfcf4..5095c3d 100644
--- a/DEPS
+++ b/DEPS
@@ -8,7 +8,7 @@
   'build_revision': '159ee37d274d6721eba19158d20b1f4912804880',
   'buildtools_revision': 'f6d165d9d842ddd29056c127a5f3a3c5d8e0d2e3',
   'catapult_revision': 'd624b3ced2c81d4fb4ea98a8dbb4532272cc1e0a',
-  'clang_revision': '1bc4a898d5b266048a7109bdfdc447cef20384b0',
+  'clang_revision': '0235fed9a32f921614500213b8e3fc1a9f1f9bcb',
   'cygwin_revision': 'c89e446b273697fadf3a10ff1007a97c0b7de6df',
   'freetype_revision': 'bec14f688925467be708f01378fbbf82e6b19b42',
   'gmock_revision': '29763965ab52f24565299976b936d1265cb6a271',