With array of array of samplers and images, we currently require the
shader*ArrayDynamicIndexing Vulkan features.  With atomic counters, we
require the shaderStorageBufferArrayDynamicIndexing feature.

The above features are required to enable passing opaque uniforms to
functions.  This change introduces a translator pass that monomorphizes
functions that receive atomic counters, or partially subscripted array
of array of samplers or images, etc by removing those arguments and
using the opaque uniform directly.

Follow up changes will include:

- Great simplification to RewriteStructSamplers, and removal of
  RewriteStructSamplersOld.  This will drop dependency to
  shaderSampledImageArrayDynamicIndexing and
  shaderStorageImageArrayDynamicIndexing.
- Great simplification to RewriteAtomicCounters.  This will drop
  dependency to shaderStorageBufferArrayDynamicIndexing.
- Emulation of imageAtomicExchange for r32f formats, but changing the
  qualifier to r32ui.

Note that parts of RewriteStructSampler are obsolete with this change,
but will be refactored as a follow up.

Bug: angleproject:3881
Bug: angleproject:4071
Bug: angleproject:5535
Change-Id: Ifd1435b2a31ebf364815046886aeded60297da79
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2628127
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>