scala/scala — pull request #1756 by JamesIry (2012-12-11 19:13:49+00:00)
Title: SI-6799 Adds option to trace when a symbol from a list of ids is created...

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Create -Ytraceids-debug, a debugging aid to find out where
specified symbols are created by dumping a stack trace.
This change also meant adding a settings type for multiple ints.