Improves the code coverage of tests for the following transformations:

1. TransformationAddRelaxedDecoration
2. TransformationReplaceCopyMemoryWithLoadStore
3. TransformationReplaceCopyObjectWithStoreLoad
4. TransformationReplaceLoadStoreWithCopyMemory
5. TransformationReplaceAddSubMulWithCarryingExtended

Roll third_party/glslang/ b60e067..f257e0e (11 commits)

KhronosGroup/glslang@b60e067...f257e0e

$ git log b60e067..f257e0e --date=short --no-merges --format='%ad %ae %s'
2020-08-14 john Build: fix a build warning
2020-08-14 rafael.fariasmarinheiro Use --test-root to pass files to Bazel tests.
2020-08-14 john Fix KhronosGroup#2366, fix KhronosGroup#2358, correctly separate out numerical feature checking
2020-08-14 john Non-functional (almost): Refactor when 'extensionRequested' is called.
2020-08-14 john Non-functional: Remove reinventing the scalar type, note code issues
2020-08-11 john Non-functional: spellings of "destinaton" and "addPairConversion"
2020-08-12 alanbaker Update test expectations
2020-08-12 alanbaker Update SPIRV-Tools and SPIRV-Headers known good
2020-08-10 ezdiy GLSLANG_EXPORT for C APIs.
2020-08-07 john Non-functional: correctly do GL_EXT_buffer_reference2 semantic checking
2020-08-06 john Non-functional: consistently use 'const TSourceLoc&' to pass location.

Created with:
  roll-dep third_party/glslang

Roll third_party/googletest/ 3af06fe16..adeef1929 (4 commits)

google/googletest@3af06fe...adeef19

$ git log 3af06fe16..adeef1929 --date=short --no-merges --format='%ad %ae %s'
2020-08-12 krzysio Googletest export
2020-08-11 absl-team Googletest export
2020-08-11 dmauro Googletest export
2020-08-10 absl-team Googletest export

Created with:
  roll-dep third_party/googletest

Roll third_party/spirv-cross/ 82d1c43e4..4c7944bb4 (1 commit)

KhronosGroup/SPIRV-Cross@82d1c43...4c7944b

$ git log 82d1c43e4..4c7944bb4 --date=short --no-merges --format='%ad %ae %s'
2020-08-13 lehoangq Fix KhronosGroup#1445: MSL: Enclose args when convert distance(a,b) to abs(a-b)

Created with:
  roll-dep third_party/spirv-cross

Roll third_party/spirv-tools/ 2990a21..b8de4f5 (19 commits)

KhronosGroup/SPIRV-Tools@2990a21...b8de4f5

$ git log 2990a21..b8de4f5 --date=short --no-merges --format='%ad %ae %s'
2020-08-16 jaebaek Allow DebugTypeTemplate for Type operand (KhronosGroup#3702)
2020-08-14 antonikarp spirv-fuzz: Improve code coverage of tests (KhronosGroup#3686)
2020-08-14 stefanomil spirv-fuzz: Fuzzer pass to randomly apply loop preheaders (KhronosGroup#3668)
2020-08-14 vasniktel spirv-fuzz: Support identical predecessors in TransformationPropagateInstructionUp (KhronosGroup#3689)
2020-08-13 alanbaker Improve non-semantic instruction handling in the optimizer (KhronosGroup#3693)
2020-08-13 vasniktel Fix the bug (KhronosGroup#3680)
2020-08-12 andreperezmaselco.developer spirv-fuzz: Check integer and float width capabilities (KhronosGroup#3670)
2020-08-12 andreperezmaselco.developer spirv-fuzz: consider additional access chain instructions (KhronosGroup#3672)
2020-08-12 andreperezmaselco.developer spirv-fuzz: Ignore specialization constants (KhronosGroup#3664)
2020-08-12 vasniktel Fix the bug (KhronosGroup#3683)
2020-08-12 vasniktel spirv-fuzz: Fix width in FuzzerPassAddEquationInstructions (KhronosGroup#3685)
2020-08-12 jaebaek Preserve debug info in dead-insert-elim pass (KhronosGroup#3652)
2020-08-12 jaebaek Validate more OpenCL.DebugInfo.100 instructions (KhronosGroup#3684)
2020-08-11 alanbaker Only validation locations for appropriate execution models (KhronosGroup#3656)
2020-08-11 andreperezmaselco.developer spirv-fuzz: Fix in operand type assertion (KhronosGroup#3666)
2020-08-11 andreperezmaselco.developer spirv-opt: Add spvOpcodeIsAccessChain (KhronosGroup#3682)
2020-08-11 vasniktel spirv-fuzz: FuzzerPassPropagateInstructionsUp (KhronosGroup#3478)
2020-08-10 stevenperron Handle no index access chain in local access chain convert (KhronosGroup#3678)
2020-08-10 rharrison Roll 2 dependencies (KhronosGroup#3677)

Created with:
  roll-dep third_party/spirv-tools