[PATCH 1 of 2] test: rename 'check-code' own test to 'test-contrib-check-code.t'

[Pierre-Yves David]

# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at fb.com>
# Date 1449384446 28800
#      Sat Dec 05 22:47:26 2015 -0800
# Node ID ccf479a499b33bdda63e706be9bd65f6268ac6a8
# Parent  42aa0e570eaa364a622bc4443b0bcb79b1100a58
# EXP-Topic testcheck
# Available At http://hg.netv6.net/marmoute-wip/mercurial/
#              hg pull http://hg.netv6.net/marmoute-wip/mercurial/ -r ccf479a499b3
test: rename 'check-code' own test to 'test-contrib-check-code.t'

This test (making sure the 'check-code' script run as intended) have been
confused with the test making that the mercurial code base comply with our
coding still by multiple generations of contributors.

We are moving it out of the way so that all tests starting with 'test-check' are
now doing compliance testing.

diff --git a/tests/test-check-code.t b/tests/test-contrib-check-code.t
rename from tests/test-check-code.t
rename to tests/test-contrib-check-code.t