go/types: remove support for "ERROR HERE" error markers in tests
There are only two tests that rely on the "ERROR HERE" markers;
yet those tests are trivialy adjustable (by adding an explicit
semicolon) such that they can just use the "ERROR" markers.
For #54511.
Change-Id: Idbb96ca8d35ae2584d195a4ac7c92640b8b492c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/425674
TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Robert Griesemer <gri@google.com> Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>