Try to map `spirv-val` output to Rust code

I just got an error that looks like this:

error: error:0:0 - OpInBoundsAccessChain result type (OpTypeStruct) does not match the type that results from indexing into the base <id> (OpTypeArray).
         %2764 = OpInBoundsAccessChain %_ptr_Function__struct_33 %2763 %uint_0
  |
  = note: spirv-val failed
  = note: module `.../spirv-unknown-vulkan1.2/debug/deps/....spv`

Unfortunately, the output isn't all that helpful, don't know how to debug it except commenting-out pieces of code until the error goes away. However, I do have a suspicion that _ptr_Function__struct_33 might be something that codegen controls, which in turn might mean ability to translate it back to something like the name of the data structure or file and line of code.

Also maybe debug builds could use something more descriptive than struct_33 to help with debugging, like a mangling scheme.

I'm compiling with these options:

let backend = cargo_gpu::Install::from_shader_crate(shader_crate.clone()).run()?;

let spirv_builder = backend
    .to_spirv_builder(shader_crate, "spirv-unknown-vulkan1.2")
    .print_metadata(MetadataPrintout::DependencyOnly)
    .spirv_metadata(SpirvMetadata::NameVariables)
    .release(false);

Esamina il flusso cargo_gpu::Install e la configurazione to_spirv_builder(...).spirv_metadata(SpirvMetadata::NameVariables), quindi ispeziona come le diagnosi emesse da spirv-val espongono _ptr_Function__struct_33. Definisci un comportamento concreto di mapping o denominazione e verificalo rispetto al fallimento OpInBoundsAccessChain mostrato; l’issue è completata quando le diagnosi generate identificano il contesto rilevante del codice sorgente Rust o forniscono nomi di debug più descrittivi.