Roll Tint from 84ef13c84f to 5c9906e307 (3 revisions)

https://dawn.googlesource.com/tint.git/+log/84ef13c84fb3..5c9906e3079f

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/tint-dawn
Please CC bclayton@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Bug: None
Tbr: bclayton@google.com
Change-Id: I5cb4bd2003ef9236094884062204fc73e4f38be1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/45960
Reviewed-by: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -96,7 +96,7 @@ deps = {
 
   # WGSL support
   'third_party/tint': {
-    'url': '{dawn_git}/tint@84ef13c84fb38d37793d7aef2025be38dd9265f5',
+    'url': '{dawn_git}/tint@5c9906e3079f81dde27dffb05109279afedc11dc',
     'condition': 'dawn_standalone',
   },