Roll SPIRV-Tools from b8de4f57e983 to e28436f2b8a2 (3 revisions)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/b8de4f57e983..e28436f2b8a2

2020-08-17 andreperezmaselco.developer@gmail.com spirv-fuzz: Check termination instructions when donating modules (#3710)
2020-08-17 jackoalan@gmail.com Fix -Wrange-loop-analysis warning (#3712)
2020-08-17 andreperezmaselco.developer@gmail.com spirv-fuzz: Check header dominance when adding dead block (#3694)

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 cnorthrop@google.com,radial-bots+chrome-roll@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: cnorthrop@google.com,radial-bots+chrome-roll@google.com
Change-Id: I0fd8b6fb1e5e54ef96995d71bf73d7ab37b28487
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2361664Reviewed-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@{#799051}

DEPS

@@ -302,7 +302,7 @@ 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': 'b8de4f57e9838c107bcbf17cf1e02608651c0e1d',
+  'spv_tools_revision': 'e28436f2b8a2f0705a07de908178d2ea2682c6d3',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.