[llvm] [llvm] Add DEBUGINFOD_VERBOSE and log dropped error to stderr (PR #188967)

[Stefan Gränitz via llvm-commits]

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@@ -26,6 +26,9 @@ DebuginfodFetcher::fetch(ArrayRef<uint8_t> BuildID) const {
   Expected<std::string> PathOrErr = getCachedOrDownloadDebuginfo(BuildID);
   if (PathOrErr)
     return *PathOrErr;
-  consumeError(PathOrErr.takeError());
+  Error Err = PathOrErr.takeError();
+  if (std::getenv("DEBUGINFOD_VERBOSE"))
+    logAllUnhandledErrors(std::move(Err), llvm::errs(), "Debuginfod error: ");
+  consumeError(std::move(Err));
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weliveindetail wrote:

Yes of course. Sorry that last change was hurried. Thanks!

https://github.com/llvm/llvm-project/pull/188967