[PATCH] Adds stable-runtime to ubsan to avoid broken ARM tests with asan

[Alexey Samsonov]

================
Comment at: test/ubsan/lit.cfg:8
@@ +7,3 @@
+# because the test hangs.
+if config.target_arch != 'arm':
+  config.available_features.add('stable-runtime')
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Add this piece to the end of test/ubsan/lit.common.cfg instead.

http://reviews.llvm.org/D5793