[Object] Re-apply r275316 now that I have the corresponding LLD patch ready.

llvm-svn: 275361

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/lib/Support/Error.cpp b/llvm/lib/Support/Error.cpp
index df540d10bc5..6b22691eb1a 100644
--- a/llvm/lib/Support/Error.cpp
+++ b/llvm/lib/Support/Error.cpp
@@ -64,6 +64,7 @@ void logAllUnhandledErrors(Error E, raw_ostream &OS, Twine ErrorBanner) {
   });
 }
 
+
 std::error_code ErrorList::convertToErrorCode() const {
   return std::error_code(static_cast<int>(ErrorErrorCode::MultipleErrors),
                          *ErrorErrorCat);
@@ -99,4 +100,14 @@ std::error_code StringError::convertToErrorCode() const {
   return EC;
 }
 
+void report_fatal_error(Error Err, bool GenCrashDiag) {
+  assert(Err && "report_fatal_error called with success value");
+  std::string ErrMsg;
+  {
+    raw_string_ostream ErrStream(ErrMsg);
+    logAllUnhandledErrors(std::move(Err), ErrStream, "");
+  }
+  report_fatal_error(ErrMsg);
+}
+
 }