case obj.NAME_AUTO,
			obj.NAME_PARAM:
			return Yiauto
		}

		// TODO(rsc): DUFFZERO/DUFFCOPY encoding forgot to set a->index
		// and got Yi32 in an earlier version of this code.
		// Keep doing that until we fix yduff etc.
		if a.Sym != nil && strings.HasPrefix(a.Sym.Name, "runtime.duff") {
			return Yi32
		}

		if a.Sym != nil || a.Name != obj.NAME_NONE {

			t.Fatalf("request %v: Reused=%v (want false), WasIdle=%v (want false)", try, info.Reused, info.WasIdle)
		}
	}
}

// Issue 18447: test that the Server's ReadTimeout is stopped while
// the server's doing its 1-byte background read between requests,
// waiting for the connection to maybe close.
func TestServerCancelsReadTimeoutWhenIdle(t *testing.T) { run(t, testServerCancelsReadTimeoutWhenIdle) }

			cas := &info[helpers[x.Choose(len(helpers))]]
			helper = cas.helper
			cas.canSelect = true
			numCanSelect++
		}

		// Permute cases and case info.
		// Doing too much here makes the exhaustive loop
		// too exhausting, so just do two swaps.
		for loop := 0; loop < 2; loop++ {
			i := x.Choose(len(cases))
			j := x.Choose(len(cases))