Roll SPIRV-Tools from dd534e877e72 to 502e98295625 (4 revisions)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/dd534e877e72..502e98295625

2020-10-16 afdx@google.com spirv-fuzz: Fix to TransformationInlineFunction (#3913)
2020-10-16 afdx@google.com spirv-fuzz: Wrap early terminators before merging returns (#3925)
2020-10-16 jaebaek@google.com Add DebugValue for function param regardless of scope (#3923)
2020-10-16 afdx@google.com Temporary fix to make GoogleTest compile. (#3922)

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,ynovikov@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,ynovikov@google.com
Change-Id: I5dd3fb19e37d70be1c87c20f73ae61fb38cd9f01
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2484327Reviewed-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@{#818415}

DEPS

@@ -313,7 +313,7 @@ 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': 'dd534e877e725c9bb6f751c427442456a05384e4',
+  'spv_tools_revision': '502e98295625f5f07c7373d959e3403be5aa9de7',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.