commit a152b23b6832eb42d4779b6af900f5ea8b9171b6
author brettw <brettw@chromium.org> Tue Jun 30 12:32:03 2015 -0700
committer Commit bot <commit-bot@chromium.org> Tue Jun 30 19:32:43 2015 +0000
tree 1b154a6ef8c15f9097ecb40213ccff1e13b45780
parent 7481ebffc2d5d6a039781f96f09485950acc51ed

GN: Throw an error for duplicate object files.

Detect duplicate object files in the same target and throw an error. This provides a stronger barrier and a more actionable message than the Ninja "multiple rules" error that will result.

Review URL: https://codereview.chromium.org/1210143003

Cr-Original-Commit-Position: refs/heads/master@{#336853}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 874d7ad541925ea79c94d9a8000407c7d5bb2c91