[llvm] [OFFLOAD] Add support for indexed per-thread containers (PR #164263)

[Joseph Huber via llvm-commits]

================
@@ -100,15 +176,101 @@ template <typename ContainerType, typename ObjectType> struct PerThreadTable {
   }
 
   template <class F> void clear(F f) {
----------------
jhuber6 wrote:

Can we give this callback a more descriptive name?

https://github.com/llvm/llvm-project/pull/164263