[PATCH 1 of 7] tests: relax test-devel-warnings to reduce false positives

[Yuya Nishihara]

On Wed, 03 Feb 2016 15:40:43 -0600, timeless wrote:
> # HG changeset patch
> # User timeless <timeless at mozdev.org>
> # Date 1454525975 0
> #      Wed Feb 03 18:59:35 2016 +0000
> # Node ID 65b75dd6ed071300014eefc947c517b292ed9f86
> # Parent  8e79ad2da8a69735488402fd018dd82bc1eb9309
> tests: relax test-devel-warnings to reduce false positives

Queued this one, thanks.