[SYCL] Refactor kernel name based data approach

[sergey-semenov]

• Rename KernelNameBasedCacheT to DeviceKernelInfo as that reflects its usage better and avoids the confusion with kernel caches.
• Make the data presence unconditional by looking it up at runtime as a fallback. This consolidates the if branches into one and saves us a couple of map lookups with old applications.
• Add compile time kernel information to the struct (unused for now).
• Switch to eager initialization of the runtime data members.
• Add cleanup of data instances when unloading a library.

[aelovikov-intel]

@sergey-semenov , what did you mean by those lines?

[sergey-semenov]

Whoops, this should be if(!isCompileTimeInfoSet())

[aelovikov-intel]

1. Why isn't it failing anywhere?
2. When I tried the change (although on top of my other changes), things broke for me. I'm not sure if it'd be clean on trunk either. Will you follow up please?

[sergey-semenov]

#20003

[sergey-semenov]

Why isn't it failing anywhere?

That probably indicates lack of test coverage for this scenario. If that's true, I don't think it's worth adding since my next PR will essentially make all kernel info behave like this (i.e. runtime information will be filled out during image registration, compile time information will be filled out during the first access to device kernel info with compile time information available).

When I tried the change (although on top of my other changes), things broke for me. I'm not sure if it'd be clean on trunk either. Will you follow up please?

I'll look into it, let's see if #20003 hits any failures in precommit.