Add test on remote existence

remote link does not exist when compiling .9999.ebuild, as emerge
install does not copy link pointing outside the tree (rsync
--link-safe).

BUG=chromium:1076606
TEST=Check emerge mttools (.9999) works
Check 'sudo make setup-in-place && touchtests'

Change-Id: Icf26994c331199e502ddfbd0c5a9927e7e970f4f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/mttools/+/2175528
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Commit-Queue: Gwendal Grignou <gwendal@chromium.org>
1 file changed