[PS4] Verify the default DWARF version is 4.

Follow-up to b8e03be. Even if Clang's generic default DWARF version
bumps up, PS4 will stay on v4.

diff --git a/clang/test/Driver/debug-options.c b/clang/test/Driver/debug-options.c
index 45a577d..22e0514 100644 (file)
--- a/clang/test/Driver/debug-options.c
+++ b/clang/test/Driver/debug-options.c
@@ -279,7 +279,8 @@
 // NOG_PS4-NOT: "-dwarf-version=
 //
 // G_PS4: "-cc1"
-// G_PS4: "-dwarf-version=
+/// PS4 will stay on v4 even if the generic default version changes.
+// G_PS4: "-dwarf-version=4"
 // G_PS4: "-generate-arange-section"
 //
 // G_ERR: error: unknown argument: