Created attachment 224577 [details]
Comment on attachment 224577 [details]
These could a single invocation as "set -ex", but I'm not sure why you're doing "set -x" in the first place. That's going to make things awfully verbose.
Created attachment 224578 [details]
Using set -e only now, and using it in all JSC script phases.
Landed in http://trac.webkit.org/changeset/164348