Roll src/third_party/SPIRV-Tools/src a6150a3fe778..a29a9947ac96 (5 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/a6150a3fe778..a29a9947ac96


git log a6150a3fe778..a29a9947ac96 --date=short --no-merges --format='%ad %ae %s'
2018-11-15 dneto@google.com UniformConstant variables can have RuntimeArray, TypeAccelerationStructureNV
2018-11-14 greg@lunarg.com Fix Instruction::IsFloatingPointFoldingAllowed()
2018-11-14 33432579+alan-baker@users.noreply.github.com Allow InstanceId for NV ray tracing (#2049)
2018-11-14 zoddicus@users.noreply.github.com Validate variable types for UniformConstant storage in Vulkan (#2008) (#2044)
2018-11-14 stevenperron@google.com Fix folding of volatile store. (#2048)


Created with:
  gclient setdep -r src/third_party/SPIRV-Tools/src@a29a9947ac96

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: Ic750cb3e79d25e3ba35e8c5e015117d302831321
Reviewed-on: https://chromium-review.googlesource.com/c/1338120Reviewed-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@{#608400}

DEPS

@@ -224,7 +224,7 @@ 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': 'a6150a3fe778f62ac85b9fc8a2547c69e7607337',
+  'spv_tools_revision': 'a29a9947ac96d811b310f481b24e293f67fedf32',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.