Implement goto for enum literals

[BlankTiger]

Implementation handles following goto scenarios for enum literals:

• procedure calls: SDL_CreateGPUDevice(.SPIRV | .MSL | .DXIL, ...)
• struct field defaults/declarations: se: Some_Enum = .A
• variable assignments: flags = .SPIRV | .MSL and ident.parent.kind = .UNARY_OPERATION
• comparison operations: value == .SOME_ENUM and value != .OTHER_ENUM

[SogoCZE]

Thank you. I will try to review this PR soon.

[SogoCZE]

First of all, thank you for the PR!

I am reviewing the changes now, and I think there is a lot of code that essentially performs type inference. Although this is necessary to resolve the type and provide the required functionality, I would like to introduce more general inference into the LSP so it is not specifically hardcoded in the goto logic for enum literals.

I will try to refactor this PR into more general type inference functionality.