Roll Tint from 782f6a5e3e to 685cb02ea8 (15 revisions)

https://dawn.googlesource.com/tint.git/+log/782f6a5e3e3c..685cb02ea8d9

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 dsinclair@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: dsinclair@google.com
Change-Id: I6936815f75f80a8881b218d11e6eb51fdebe97e5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/34723
Reviewed-by: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -82,7 +82,7 @@ deps = {
 
   # WGSL support
   'third_party/tint': {
-    'url': '{dawn_git}/tint@782f6a5e3e3cc74817c555417d21853d7e61de3f',
+    'url': '{dawn_git}/tint@685cb02ea8d9afbad46d52ccbe4fa3728ac37693',
     'condition': 'dawn_standalone',
   },