Correct logic for "defined by object"

[Alan Modra]

On Tue, Dec 23, 2014 at 04:46:29AM -0800, H.J. Lu wrote:
> No testcase?

No.  This patch wasn't in response to a bug report or from observing
wrong linker behaviour myself.  In fact, I don't think you can write a
testcase that fails with the old code and passes with the new, due to
the way def->by_object is used.  The patch was really just a tidy.

-- 
Alan Modra
Australia Development Lab, IBM