[clang] [clang][DebugInfo] Set linkage name for dynamic initializer/destructor debug info (PR #189794)

[Vladislav Dzhidzhoev via cfe-commits]

dzhidzhoev wrote:

Does `linkageName:` currently affect the debug info emitted by CodeView?
If not, how will CodeViewDebug determine which functions should use `name:` and which should use `linkageName:`?

https://github.com/llvm/llvm-project/pull/189794