Roll src/third_party/SPIRV-Tools/src 5547553a0c7b..23d68608b007 (7 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/5547553a0c7b..23d68608b007

git log 5547553a0c7b..23d68608b007 --date=short --first-parent --format='%ad %ae %s'
2020-04-27 bclayton@google.com vscode: Handle '|' chains on BitEnum / ValueEnum (#3309)
2020-04-27 jaebaek@google.com Add debug information analysis (#3305)
2020-04-27 dneto@google.com Add spvtools::opt::Operand::AsLiteralUint64 (#3320)
2020-04-27 afdx@google.com spirv-fuzz: Pass on validator options during shrinking (#3317)
2020-04-27 afdx@google.com spirv-fuzz: Clamp statically out-of-bounds accesses in code donation (#3315)
2020-04-27 afdx@google.com spirv-fuzz: Fix memory management in the fact manager (#3313)
2020-04-27 afdx@google.com spirv-fuzz: Do not replace the Sample argument in OpImageTexelPointer (#3311)

Created with:
  gclient setdep -r src/third_party/SPIRV-Tools/src@23d68608b007

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,cnorthrop@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/+/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
Bug: None
Tbr: radial-bots+chrome-roll@google.com,cnorthrop@google.com
Change-Id: I6121fec8d9afaa1d4d9ba558f2ac75bd42154f12
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2169976
Reviewed-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@{#763301}