Opaque pointers #382
Description
Is your feature request related to a problem? Please describe.
LLVM is moving towards opaque pointers. In LLVM 16 non-opaque pointers are forbidden. It's probably worth to start implementing optional support for them now.
Describe the solution you'd like
Add new type OpaquePointerType
Describe possible drawbacks to your solution
None, except more work. Opaque pointers are inevitable
Describe alternatives you've considered
Add Context::use_opaque_pointers function, as LLVM did.