Roll src/third_party/SPIRV-Tools/src 2a88bcbaff3e..d73b9d8dfbf7 (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/2a88bcbaff3e..d73b9d8dfbf7


git log 2a88bcbaff3e..d73b9d8dfbf7 --date=short --no-merges --format='%ad %ae %s'
2018-10-02 jaebaek@google.com [Validator] AMD_gpu_shader_half_float_fetch allow float16 (#1393)
2018-10-02 jaebaek@google.com Validator: OpImageQuerySize validation (#1538)


Created with:
  gclient setdep -r src/third_party/SPIRV-Tools/src@d73b9d8dfbf7

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-tools-chromium-autoroll

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=dsinclair@chromium.org

Change-Id: Iaeeafccb8a03d4b9c3f86ec83e5e8963f3b84ddb
Reviewed-on: https://chromium-review.googlesource.com/c/1257609Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#596007}

DEPS

@@ -213,7 +213,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'spv_tools_revision': '2a88bcbaff3e9fa857151284d7698dad9053c1aa',
+  'spv_tools_revision': 'd73b9d8dfbf7761e3fde323af00ec18ebfc0020c',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.