[llvm] [offload][l0] Implement context groups (PR #217562)

[Jan Trusiłło via llvm-commits]

================
@@ -29,15 +29,20 @@ namespace unittests {
 // allows to call global state reset and platforms initialization methods to be
 // able to set expectations on devices enumeration calls in a proper way.
 struct UnittestsHelper {
-  UnittestsHelper() { detail::PlatformImpl::rediscoverIfEmpty = true; }
+  UnittestsHelper() {
----------------
311Volt wrote:

Reverted

https://github.com/llvm/llvm-project/pull/217562