[clang] [llvm] [clang][DebugInfo] Allow function-local statics to be scoped within a lexical block (PR #213153)

[Vladislav Dzhidzhoev via cfe-commits]

dzhidzhoev wrote:

> It might be good to check whether printing these kinds of variables in the debugger (and evaluating expressions involving them) still works fine. Would be surprised if that broke, but good to sanity check

I have added a Dexter test for that.
And just to make sure I'm not missing out on that case, I have added a test similar to `debug-info-static-locals.cpp`, that checks scoping of thread-local variables. 

https://github.com/llvm/llvm-project/pull/213153