cmd/go: convert TestListTests to the script framework

cmd/go: convert TestListTests to the script framework

The original test has four subtests. I think it's okay to just have
one corresponding script test instead of having four different
tests.

Part of converting all tests to script framework to improve
test parallelism.

Updates #36320
Updates #17751

Change-Id: I97bc2cbb3ad5a297d7457476b8c831ee6e0f49b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/213126
Reviewed-by: Jay Conrod <jayconrod@google.com>