// Case 3.
	for zi := range l.zone {
		if !l.zone[zi].isDST {
			return zi
		}
	}

	// Case 4.
	return 0
}

// firstZoneUsed reports whether the first zone is used by some
// transition.
func (l *Location) firstZoneUsed() bool {
	for _, tx := range l.tx {
		if tx.index == 0 {
			return true
		}
	}
	return false
}

 func (l <esc:0x1> <type 24>) .time.lookupName (name <esc:0x1> <type -16>, unix <type -4>) (offset <type -11>, ok <type -15>);
 func (l <esc:0x1> <type 24>) .time.firstZoneUsed () <type -15>;
>>; }>
 func (t <esc:0x12> <type 12>) In (loc <type 14>) <type 12>;
 func (t <esc:0x1> <type 12>) .time.date (full <type -15>) (year <type -11>, month <type 25 "time.Month" <type -11>

 func (l <type 15>) .time.lookup (sec <type -4>) (name <type -16>, offset <type -11>, isDST <type -15>, start <type -4>, end <type -4>);
 func (l <type 15>) .time.lookupFirstZone () <type -11>;
 func (l <type 15>) .time.firstZoneUsed () <type -15>;
 func (l <type 15>) .time.lookupName (name <type -16>, unix <type -4>) (offset <type -11>, isDST <type -15>, ok <type -15>);
>>; }>
 func (t <type 3>) String () <type -16>;