TestStmtLines has been added in CL 102435.
This test is failing on Plan 9 because executables
don't have a DWARF symbol table.

Fixes #25387.

Change-Id: I6ae7cba0e8ad4ab569a29ea8920b7849acfb9846
Reviewed-on: https://go-review.googlesource.com/113115
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>