Just showing the line and function isn't as useful.

Bug: angleproject:3162
Change-Id: Ic8c2425a7a7e9992d2a569abd8ea0b7731fa69c6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2407834
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>