Fix LineLoopStateChangeTest to actually draw square and hourglass The test claimed to be drawing an hourglass followed by a square. That is: ---- \/ /\ ---- followed by: ---- | | | | ---- With the end result being: ---- |\/| |/\| ---- However, in reality it was drawing two hour glasses with the same result. That is: ---- \/ /\ ---- followed by: |\/| |/\| Bug: angleproject:3361 Change-Id: I59a2930f78e6e448b6ccb2e5f70c73ff0f15a2ea Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1561650 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>