Reenable StackTracke.cpp test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86861 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/FrontendC++/2006-11-06-StackTrace.cpp b/test/FrontendC++/2006-11-06-StackTrace.cpp
index a2b2e1d..24eeda8 100644
--- a/test/FrontendC++/2006-11-06-StackTrace.cpp
+++ b/test/FrontendC++/2006-11-06-StackTrace.cpp
@@ -12,7 +12,7 @@
 
 // Only works on ppc (but not apple-darwin9), x86 and x86_64.  Should
 // generalize?
-// XFAIL: *
+// XFAIL: alpha,arm,powerpc-apple-darwin9
 
 #include <stdlib.h>