Roll Tint from f600d3aa9f to 6d6aed5460 (1 revision)

https://dawn.googlesource.com/tint.git/+log/f600d3aa9f26..6d6aed546061

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 kainino@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: kainino@google.com
Change-Id: I5d1e7a23d321b54f4c099004e6019d495a511697
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/29906
Reviewed-by: <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -90,7 +90,7 @@ deps = {
 
   # WGSL support
   'third_party/tint': {
-    'url': '{dawn_git}/tint@f600d3aa9f2642125e867531b0054c12b9d59dfa',
+    'url': '{dawn_git}/tint@6d6aed546061f7c54f7b308dd3d8eff994af3c5d',
     'condition': 'dawn_standalone',
   },