test/Driver/debug-options*.c: Tweak r147819 to split out another cc1as-sensitive test. gcc driver is invoked for assembling on cygming.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148022 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/debug-options-as.c b/test/Driver/debug-options-as.c
index 9580ac8..a1dbe2e 100644
--- a/test/Driver/debug-options-as.c
+++ b/test/Driver/debug-options-as.c
@@ -1,10 +1,18 @@
+// cygming have not supported integrated-as yet.
+// XFAIL: cygwin,mingw32
+//
+// Check to make sure clang is somewhat picky about -g options.
+// (Delived from debug-options.c)
+// rdar://10383444
+// RUN: %clang -### -c -save-temps -g %s 2>&1 | FileCheck -check-prefix=SAVE %s
+//
+// SAVE: "-cc1as"
+// SAVE-NOT: "-g"
+
 // Check to make sure clang with -g on a .s file gets passed.
 // rdar://9275556
 // RUN: touch %t.s
 // RUN: %clang -### -c -g %t.s 2>&1 | FileCheck -check-prefix=S %s
 //
-// cygming have not supported integrated-as yet.
-// XFAIL: cygwin,mingw32
-//
 // S: "-cc1as"
 // S: "-g"