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);

Überprüfe den cargo_gpu::Install-Ablauf und die Konfiguration to_spirv_builder(...).spirv_metadata(SpirvMetadata::NameVariables) und untersuche anschließend, wie die ausgegebenen spirv-val-Diagnosen _ptr_Function__struct_33 offenlegen. Definiere ein konkretes Mapping- oder Benennungsverhalten und verifiziere es anhand des gezeigten OpInBoundsAccessChain-Fehlers; die Issue ist abgeschlossen, wenn die generierten Diagnosen relevanten Rust-Quellkontext identifizieren oder aussagekräftigere Debug-Namen liefern.