[llvm] [ORC] Add automatic shared library resolver for unresolved symbols. (PR #148410)

[Alexander Penev via llvm-commits]

alexander-penev wrote:

@vgvassilev I also think that everything from Cling/ROOT (as well as the subsequent rework) seems to be implemented. The improvements made are also reasonable. As @vgvassilev says, it is good to add some of the tests and some new ones. The recommended improvements are also appropriate.

https://github.com/llvm/llvm-project/pull/148410