Add support for ARB_gpu_shader_fp64

Fix #1829: Allow "--" options for def/undef, for OpModuleProcessed.

This allows OpModuleProcessed logging to be consistent with everything taking
"--" options.

FYI, move builtin check to type symbol check.
Avoid modifying interface doubleCheck().

Add missing extension defination

This micro should been defined 1, if opengl 2.0 is required.

Modify max binding checks for atomic_uint

Add builtin constants gl_MaxFragmentUniformVectors and gl_MaxVertexUniformVectors.

Add builtin constants:

gl_MaxFragmentUniformVectors and gl_MaxVertexUniformVectors.
They should both be available since version 410 for core.

GLSL Version : >= 150

Purpose:
Allow users to use features by enabling this extension, even in low versions.

Extension Name:
ARB_gpu_shader_fp64

Builtin-variables:
Nah

Builtin-functions:
functions overloaded for this extension, please check registry in reference.

Keywords:
Double

Features:
add support for type "double"

Reference:
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_gpu_shader_fp64.txt

Add support for implicit conversion

1. Remove builtin double vertex (this is introduced by vertex_attrib_64bit
2. Add extension check and implicit conversion as double has been introduced
3. Add test results.

Add support for ARB_uniform_buffer_object

Add support for ARB_texture_multisample

atomic counter offset should align to 4 (compute shader)

Add support for ARB_sample_shading

atomic counter offset should align to 4
Ref:
glspec46.core - 6.8 BufferObjectState
offset restriction multiple of 4

Modify atomic_uint binding check.

Currently, when not declared with offset, default atomic_unint won't check whether its binding is valid or not more than its limit value.

GLSL Version : >= 120

Purpose:
Allow users to use features by enabling this extension, even in low versions.

Extension Name:
ARB_uniform_buffer_object

Builtin-variables:
Uniform

Builtin-functions:
Nah

Keywords:
Nah

Features:
uniform block

Reference:
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_uniform_buffer_object.txt

GLSL Version : >= 140

Purpose:
Allow users to use features by enabling this extension, even in low versions.

Extension Name:
ARB_texture_multisample

Builtin-variables:
Nah

Builtin-functions:
Nah

Keywords:
      sampler2DMS, isampler2DMS, usampler2DMS,
      sampler2DMSArray, isampler2DMSArray, usampler2DMSArray

Reference:
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_texture_multisample.txt

Version : >= 130

Extension Name: ARB_sample_shading

Builtin-variables:
"gl_SampleID"
"gl_SamplePosition"
"gl_SampleMask"
"gl_NumSamples"

Reference:
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_sample_shading.txt

Update spriv-tools known good

Fix #2020: PR #1977 broke HLSL member consistency, this fixes it.

using an unitialized member.  This commit consistently does not use those
HLSL members unless ENABLE_HLSL is on.

Fix: #2014: Don't do "extension-on && version >= ..." keyword checks.

Fix #2007: Fix a couple relative header paths in header files.

Keywords should only have tests like "extension-on || version >= ...", or
"extension-off && version <= ...".

Remove glslang::pool_allocator::setAllocator

TPoolAllocator is not copy assignable, so this setter could never have
been used. After a recent change (878a24ee2), new versions of Clang
reject this code outright.

Implement INTEL_shader_integer_functions2

v2: Move addCapability and addExtension extension calls from
TGlslangToSpvTraverser::createBinaryOperation to
TGlslangToSpvTraverser::visitAggregate.  Suggested by JohnK.

The changes to glslang/glslang/MachineIndependent/ParseHelper.cpp exist
purely to prevent even more instances of "warning: enumeration value
‘EOp...’ not handled in switch"

v2: Remove 8-bit types.  Overzealous copy-and-paste led to adding
support for a bunch of types that the extension doesn't actually enable.

v3: Update expected test results file.  Just changing an expected
results file to make a test pass seems sketchy to me, but I'm not sure
what else to do.

v4: Add missing entry for EOpAbsDifference in
TOutputTraverser::visitBinary.  Noticed by JohnK.

Update README.md to include other test requirements

Knowing this in advance would have saved me some time.