Marking a passing test as skipped test is a regression

-- p_test.go --
package p

import "testing"

func TestP(t *testing.T) {
}

-- .commit --
Initial commit

-- p_test.go --
package p

import "testing"

func TestP(t *testing.T) {
	t.SkipNow()
}

-- .commit --
Skip test

-- .run_test --
Test regressions detected between initial commit (851ba0628e0e2d93e27e168d6af336f3e4d375c7) and HEAD:

1: sketch.dev.TestP: Was passing, now skipped


Please fix before proceeding.