* Avoid operand type range checks

Deprecates the SPV_OPERAND_TYPE_FIRST_* and SPV_OPERAND_TYPE_LAST_*
macros.

The "variable" and "optional" operand types are only for internal use.
Export spvOperandIsConcrete instead, as that should cover intended
external uses.

Test that each operand type is classified either as one of:
- a sentinel value
- a concrete operand type
- an optional operand type (which includes variable-expansion types)

Test that each concrete and optional non-variable operand type
has a name for use internally when generating messages.

Co-authored-by: Steven Perron <stevenperron@google.com>

* Rolling 2 dependencies and updating expectations

Roll third_party/spirv-cross/ 6575e451f..0376576d2 (5 commits)

KhronosGroup/SPIRV-Cross@6575e45...0376576

$ git log 6575e451f..0376576d2 --date=short --no-merges --format='%ad %ae %s'
2020-07-22 tommek Enabling setting a fixed sampleMask in Metal fragment shaders.
2020-02-20 cdavis MSL: Add support for processing more than one patch per workgroup.
2020-07-22 dsinclair Roll GLSLang, SPIRV-Headers and SPIRV-Tools.
2020-07-22 cdavis MSL: Factor creating a uint type into its own method.
2020-07-22 cdavis MSL: Factor a really gnarly condition into its own method.

Created with:
  roll-dep third_party/spirv-cross

Roll third_party/spirv-tools/ 969f028..b63f0e5 (13 commits)

KhronosGroup/SPIRV-Tools@969f028...b63f0e5

$ git log 969f028..b63f0e5 --date=short --no-merges --format='%ad %ae %s'
2020-07-27 rdb Fix SyntaxWarning in Python 3.8 (KhronosGroup#3388)
2020-07-27 bclayton CMake: Enable building with BUILD_SHARED_LIBS=1 (KhronosGroup#3490)
2020-07-27 dneto Avoid operand type range checks (KhronosGroup#3379)
2020-07-27 jaebaek Preserve debug info in scalar replacement pass (KhronosGroup#3461)
2020-07-27 pierremoreau Update OpenCL capabilities validation (KhronosGroup#3149)
2020-07-27 stevenperron build(deps): bump lodash from 4.17.15 to 4.17.19 in /tools/sva (KhronosGroup#3596)
2020-07-27 antonikarp spirv-fuzz: adds TransformationReplaceLoadStoreWithCopyMemory (KhronosGroup#3586)
2020-07-27 jaebaek Preserve OpenCL.DebugInfo.100 through private-to-local pass (KhronosGroup#3571)
2020-07-27 stefanomil spirv-fuzz: Relax type checking for int contants (KhronosGroup#3573)
2020-07-27 stefanomil spirv-fuzz: Generalise transformation access chain (KhronosGroup#3546)
2020-07-27 stefanomil spirv-fuzz: Split blocks starting with OpPhi before trying to outline (KhronosGroup#3581)
2020-07-27 afdx spirv-fuzz: Set message consumer in replayer when shrinking (KhronosGroup#3591)
2020-07-24 vasniktel spirv-fuzz: Don't use default parameters (KhronosGroup#3583)

Created with:
  roll-dep third_party/spirv-tools

* Add in missing expectations update