Roll SPIRV-Tools from ba15b5886290 to 69f07da41b3b (19 revisions)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/ba15b5886290..69f07da41b3b

2020-10-22 afdx@google.com spirv-fuzz: Fix mismatch with shrinker step limit (#3985)
2020-10-22 afdx@google.com spirv-fuzz: Fix off-by-one error in replayer (#3982)
2020-10-22 afdx@google.com spirv-fuzz: Get order right for OpSelect arguments (#3974)
2020-10-22 afdx@google.com spirv-fuzz: Do not add synonym-creating loops in dead blocks (#3975)
2020-10-22 afdx@google.com spirv-fuzz: Skip OpTypeSampledImage when propagating up (#3976)
2020-10-22 afdx@google.com spirv-fuzz: Pass OpUndef in function call if needed (#3978)
2020-10-22 afdx@google.com spirv-fuzz: Fix off-by-one in TransformationCompositeConstruct (#3979)
2020-10-21 afdx@google.com spirv-fuzz: Tolerate absent ids in data synonym fact management (#3966)
2020-10-21 afdx@google.com spirv-fuzz: Fix to id availability (#3971)
2020-10-21 afdx@google.com spirv-fuzz: Fix operand types (#3962)
2020-10-21 8729214+jonahryandavis@users.noreply.github.com Update SPIRV-Headers revision in DEPS file (#3961)
2020-10-21 afdx@google.com spirv-fuzz: Don't flatten conditional if condition is irrelevant (#3944)
2020-10-21 afdx@google.com spirv-fuzz: Do not produce OpPhis of type OpTypeSampledImage (#3964)
2020-10-21 afdx@google.com spirv-fuzz: Restrict fuzzer pass to reachable blocks (#3970)
2020-10-21 afdx@google.com spirv-fuzz: Handle more types when extending OpPhi instructions (#3969)
2020-10-21 afdx@google.com spirv-fuzz: Skip early terminator wrappers when merging returns (#3968)
2020-10-21 afdx@google.com spirv-fuzz: Avoid irrelevant constants in synonym-creating loops (#3967)
2020-10-21 afdx@google.com spirv-fuzz: Skip dead blocks in FuzzerPassAddOpPhiSynonyms (#3965)
2020-10-21 afdx@google.com spirv-fuzz: Avoid the type manager when looking for struct types (#3963)

Also rolling transitive DEPS:
  https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers from 3fdabd0da293 to 05836bdba63e

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

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Change-Id: I576e5fc09a8bb418cb7a33146e002592fee943c2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2494515Reviewed-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@{#820182}

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': 'ba15b58862907e9ca5398ea4dd23b97dffc4b2b6',
+  'spv_tools_revision': '69f07da41b3bc4f563fade2b2d9aeab7f3329ae4',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.