cmd/api: skip 3 non-TestCheck tests in -check mode
TestIssue64958 takes a while, so it's not worth running both without
and with -check flag. The others are fast, but there's still no good
reason to run anything but TestCheck when the -check flag is on.
Change-Id: I13ebb90e3c863006f21441909b05364e1b316ed6
Reviewed-on: https://go-review.googlesource.com/c/go/+/668656 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Jonathan Amsterdam <jba@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>