Roll SPIRV-Tools from 40c3c1cace0a to 4c33fb0d3dba (6 revisions)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/40c3c1cace0a..4c33fb0d3dba

2020-07-14 jaebaek@google.com Rewrite KillDebugDeclares() (#3513)
2020-07-14 andreperezmaselco.developer@gmail.com spirv-fuzz: Fix instruction insertion issue (#3521)
2020-07-14 andreperezmaselco.developer@gmail.com spirv-fuzz: Implement the OpMatrixTimesMatrix linear algebra case (#3527)
2020-07-14 greg@lunarg.com Add support to GPU-AV instrumentation for Task and Mesh shaders (#3512)
2020-07-14 andreperezmaselco.developer@gmail.com spirv-fuzz: Support adding dead break from back-edge block (#3519)
2020-07-14 andreperezmaselco.developer@gmail.com Support OpPhi when replacing boolean constant operand (#3518)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/spirv-tools-chromium-autoroll
Please CC radial-bots+chrome-roll@google.com,jonahr@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

Cq-Include-Trybots: luci.chromium.try:android_angle_vk32_deqp_rel_ng;luci.chromium.try:android_angle_vk32_rel_ng;luci.chromium.try:android_angle_vk64_deqp_rel_ng;luci.chromium.try:android_angle_vk64_rel_ng;luci.chromium.try:linux_angle_deqp_rel_ng;luci.chromium.try:linux-angle-rel;luci.chromium.try:win-angle-rel-32;luci.chromium.try:win-angle-rel-64;luci.chromium.try:win-angle-deqp-rel-32;luci.chromium.try:win-angle-deqp-rel-64
Tbr: radial-bots+chrome-roll@google.com,jonahr@google.com
Change-Id: Ia998836a33461e8a572a2faf0ca6c222f62d38eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2299485Reviewed-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@{#788571}

DEPS

@@ -301,7 +301,7 @@ 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': '40c3c1cace0ae23f89a5da6f5d3111f299985694',
+  'spv_tools_revision': '4c33fb0d3dbaf8b2579c112cdbb7e9794143e337',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.