Merged revision(s) 1525194 from lucene/dev/trunk:
LUCENE-5207: Add a test that checks if the stack trace of an exception thrown from a Javascript function contains the original expression source code as the "filename".

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1525195 13f79535-47bb-0310-9956-ffa450edef68