Merge commit '8083944be0f2' from llvm.org/main into next

Author: git apple-llvm automerger

.ci/monolithic-linux.sh

@@ -38,7 +38,7 @@ function at-exit {
 
   ccache --print-stats > artifacts/ccache_stats.txt
   cp "${BUILD_DIR}"/.ninja_log artifacts/.ninja_log
-  cp "${BUILD_DIR}"/test-results.*.xml artifacts/
+  cp "${BUILD_DIR}"/test-results.*.xml artifacts/ || :
 
   # If building fails there will be no results files.
   shopt -s nullglob

.ci/monolithic-windows.sh

@@ -33,7 +33,7 @@ function at-exit {
   mkdir -p artifacts
   sccache --show-stats >> artifacts/sccache_stats.txt
   cp "${BUILD_DIR}"/.ninja_log artifacts/.ninja_log
-  cp "${BUILD_DIR}"/test-results.*.xml artifacts/
+  cp "${BUILD_DIR}"/test-results.*.xml artifacts/ || :
 
   # If building fails there will be no results files.
   shopt -s nullglob