Adjust the doc after the renaming of debuginfo-tests => cross-project-tests

GitOrigin-RevId: 2790498178b4bb7c8594c936d512410d55b91d98
diff --git a/docs/TestingGuide.rst b/docs/TestingGuide.rst
index aeb2e89..1b11c9d 100644
--- a/docs/TestingGuide.rst
+++ b/docs/TestingGuide.rst
@@ -184,7 +184,7 @@
 Debugging Information tests
 ---------------------------
 
-To run debugging information tests simply add the ``debuginfo-tests``
+To run debugging information tests simply add the ``cross-project-tests``
 project to your ``LLVM_ENABLE_PROJECTS`` define on the cmake
 command-line.