Thanks for confirming.

Dumb question. Is the process of bisecting simply building emacs at half-way commits between passing and failing builds till you narrow down to the breaking commit? 

My each build takes 5-10 minutes. So that would take a long time to narrow down to the culprit.

On Thu, Jul 7, 2016 at 12:18 PM martin rudalics <rudalics@gmx.at> wrote:
Confirmed.  Something seems to suppress highlighting in the minibuffer -
displaying eldoc in tooltips works as before.  Could you bisect to find
out what's been causing this?

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Kaushal Modi