Roll SwiftShader from 678ffefb1b3b to 0296680c782c (2 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/678ffefb1b3b..0296680c782c

2022-08-02 capn@google.com Strip only the leading underscore from Mach-O symbols
2022-08-02 swiftshader.regress@gmail.com Regres: Update test lists @ 678ffefb

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

To file a bug in SwiftShader: https://bugs.chromium.org/p/swiftshader/issues/entry
To file a bug in Dawn: https://bugs.chromium.org/p/dawn/issues/entry

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/main/autoroll/README.md

Bug: None
Tbr: lokokung@google.com
Change-Id: I5df23390a012fe44771cb7d005c27c89bcef8d09
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98001
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -134,7 +134,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@678ffefb1b3b677de66e2050b2d3bd04f7300d2f',
+    'url': '{swiftshader_git}/SwiftShader@0296680c782c0da62744cad6d5ab545602a8e548',
     'condition': 'dawn_standalone',
   },