Roll Clang from 84af3ee5124d to 0454dd8c48cd

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/clang-dart-sdk
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is aware of the problem.

To file a bug in Clang: https://bugs.fuchsia.dev/p/fuchsia/issues/list?q=component%3AToolchain
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Cq-Include-Trybots: luci.dart.try:dart-sdk-linux-try;luci.dart.try:dart-sdk-mac-try;luci.dart.try:dart-sdk-mac-arm64-try;luci.dart.try:dart-sdk-win-try
Change-Id: Ia2e77d704e59491f7e42bd5ce02ff0e39c4d8344
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/413363
Commit-Queue: Derek Xu <[email protected]>
Reviewed-by: Siva Annamalai <[email protected]>
Reviewed-by: Derek Xu <[email protected]>

Author: DEPS Autoroller

DEPS

@@ -76,7 +76,7 @@ vars = {
   "jsc_tag": "version:290198",
 
   # https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/clang
-  "clang_version": "git_revision:84af3ee5124de3385b829c3a9980fd734f0d92e8",
+  "clang_version": "git_revision:0454dd8c48cd771478f1ae53330ba78e71bcd7cb",
 
   # https://chrome-infra-packages.appspot.com/p/gn/gn
   "gn_version": "git_revision:eabc4de478e68adce5a645261aadbb00f2994f14",