[llvm] [OpenMP] Adds omp_target_is_accessible routine (PR #138294)

[Shilei Tian via llvm-commits]

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@@ -281,3 +281,7 @@ bool DeviceTy::useAutoZeroCopy() {
     return false;
   return RTL->use_auto_zero_copy(RTLDeviceID);
 }
+
+bool DeviceTy::supportsUnifiedMemory() {
+  return RTL->supports_unified_memory(RTLDeviceID);
+}
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shiltian wrote:

missing empty line at EoF

https://github.com/llvm/llvm-project/pull/138294