[SPIR-V] vk::SpirvType used as T in vk::RawBuffer APIs causes SIGSEGV

[devshgraphicsprogramming]

Description
Tried to use a sized inline SpirvType for uint8_t with RawBuffer because I couldn't use my own bda::__ref (inline Spir-V PhysicalStorageBuffer class pointer to type T) because of #6951 not being merged yet fixing the Spir-V Type of Spir-V Type issue.

Steps to Reproduce

Godbolt DXC trunk: https://godbolt.org/z/61WsMPzjr

Actual Behavior

Crash with SIGSEGV

My own godbolt instance (a few commits behind) has a Debug build of DXC and I can't see any assert being hit.

Environment

• DXC version: latest
• Host Operating System: whatever you have an Godbolt

[s-perron]

We are hitting an assert:

DirectXShaderCompiler/tools/clang/lib/SPIRV/SpirvEmitter.cpp

Line 7003 in 6a7eae1

assert(recordType->isStructureType());

The issues is that the vk::SpirvType is a record type, but not a structured type. The type is:

RecordType 0x555555a57630 'vk::SpirvType<21, 1, 1, vk::Literal<vk::integral_constant<unsigned int, 8> >, vk::Literal<vk::integral_constant<unsigned int, 0> > >'
`-ClassTemplateSpecialization 0x555555a574e0 'SpirvType'

We need to add special handling for the types in the vulkan name space. An easy solution to fix just this issue is to assume that the type is not an array or struct type that requires layout information. However that will not work for all cases. Some more investigation should be done to check how layout rules can be handled.