[llvm] [clang][OpenMP] Fix bug #62099 - use hash value when inode ID cannot be determined (PR #131646)

[Michael Kruse via llvm-commits]

================
@@ -9577,14 +9577,16 @@ OpenMPIRBuilder::getTargetEntryUniqueInfo(FileIdentifierInfoCallbackTy CallBack,
                                           StringRef ParentName) {
   sys::fs::UniqueID ID;
   auto FileIDInfo = CallBack();
-  if (auto EC = sys::fs::getUniqueID(std::get<0>(FileIDInfo), ID)) {
-    report_fatal_error(("Unable to get unique ID for file, during "
-                        "getTargetEntryUniqueInfo, error message: " +
-                        EC.message())
-                           .c_str());
-  }
+  uint64_t FileID{0};
+  auto EC = sys::fs::getUniqueID(std::get<0>(FileIDInfo), ID);
----------------
Meinersbur wrote:

```suggestion
  uint64_t FileID = 0;
  std::error_code EC = sys::fs::getUniqueID(std::get<0>(FileIDInfo), ID);
```

https://github.com/llvm/llvm-project/pull/131646