Pdb::Sym::cast: Invalid type cast. about formatpe HOT 2 CLOSED

Added support for SymPublicSymbol.
You can't deal with it as with SymFunc in case of stripped symbols (like PDBs for system libraries provided by Microsoft): you can extract an address, name and size only, no more.
You can't even determine what exactly is it - a function, exported constant or something else.
So, if you have private (full) symbols - you can deal with SymFunc and parse arguments and calling convention, but if you have only public/stripped symbols - use SymPublicSymbol instead for functions and exported data.
https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/public-symbols-and-private-symbols

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Hm. Really, these functions have the type PublicSymbol, not Function. I'll do support for it.

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