000000b0  1d 00 20 49 31 09 86 3b  71 6b ff 6c bc 6f 40 4c  |.. I1..;qk.l.o@L|
000000c0  3a 04 44 c3 83 6c 9b 1d  99 a6 10 c7 07 f9 9d 57  |:.D..l.........W|
000000d0  2d b4 59 00 29 00 94 00  6f 00 69 00 00 00 00 00  |-.Y.)...o.i.....|
000000e0  00 00 00 00 00 00 00 00  00 00 00 94 68 2d a3 82  |............h-..|
000000f0  51 ed 14 ef 68 ca 42 c5  5c 95 7a 77 9a 7a 61 99  |Q...h.B.\.zw.za.|

# golang.org/issue/25542.
name: noprev1
A: B4 C2
B2.hidden:
C2:
build A:               A B4        C2
downgrade A B2.hidden: A B2.hidden C2

name: noprev2
A: B4 C2
B2.hidden:
B1:
C2:
build A:               A B4        C2
downgrade A B2.hidden: A B2.hidden C2

name: noprev3
A: B4 C2
B3:
B2.hidden:
C2:
build A:               A B4        C2
downgrade A B2.hidden: A B2.hidden C2

000000a0  41 17 03 03 01 50 c0 1e  e0 f5 55 6e 92 52 99 d8  |A....P....Un.R..|
000000b0  62 06 9a 59 c7 b0 d7 5e  c9 6d 76 a6 7a c9 55 fe  |b..Y...^.mv.z.U.|
000000c0  83 d5 84 fc 3c f0 02 fe  0f f8 b4 2e a0 45 29 cd  |....<........E).|
000000d0  37 ea 9d 2e 75 c4 06 1e  58 5f 21 31 4b 8c 5e 91  |7...u...X_!1K.^.|
000000e0  83 c1 0d 2c 21 68 1b 05  85 d2 35 1c 36 ee 9c b2  |...,!h....5.6...|

00000030  6f f4 cb 8a 13 74 a2 ee  b7 27 69 b4 41 c0 90 68  |o....t...'i.A..h|
00000040  bc 02 69 e1 c6 48 4f 39  36 30 25 ca 4c 17 ce 83  |..i..HO960%.L...|
00000050  9e 08 56 e3 05 49 93 9e  2e c4 fb e6 c8 01 f1 0f  |..V..I..........|
00000060  c5 70 0f 08 83 48 e9 48  ef 6e 50 8b 05 7e e5 84  |.p...H.H.nP..~..|
00000070  25 fa 55 c7 ae 31 02 27  00 ef 3f 98 86 20 12 89  |%.U..1.'..?.. ..|

	93 83 55 b5 a5 0a db 6d b2 1b 7a 6a f6 49 d7 b4 bc 41 9d 78 76
	48 7d 95 00 00 06 13 01 13 03 13 02 01 00 01 cd 00 00 00 0b 00
	09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00 12
	00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 33 00
	26 00 24 00 1d 00 20 e4 ff b6 8a c0 5f 8d 96 c9 9d a2 66 98 34
	6c 6b e1 64 82 ba dd da fe 05 1a 66 b4 f1 8d 66 8f 0b 00 2a 00

  @Override
  public int readInt() throws IOException {
    byte b1 = readAndCheckByte();
    byte b2 = readAndCheckByte();
    byte b3 = readAndCheckByte();
    byte b4 = readAndCheckByte();

    return Ints.fromBytes(b4, b3, b2, b1);
  }

  /**
   * Reads a {@code long} as specified by {@link DataInputStream#readLong()}, except using
   * little-endian byte order.
   *

00000320  52 e2 07 a6 68 68 69 fc  2b d7 fd 28 ef 48 85 c9  |R...hhi.+..(.H..|
00000330  70 75 b4 f4 04 2f 39 69  ee 1a aa 14 c9 7b e0 f7  |pu.../9i.....{..|
00000340  bc 50 76 df 24 57 8b a4  ca 87 8a b5 ff c9 13 9e  |.Pv.$W..........|
00000350  d3 9e 2b e1 d4 6f 0c ce  61 83 e9 38 51 04 2e 23  |..+..o..a..8Q..#|
00000360  b4 f8 90 f4 0f 45 93 34  14 f4 ca 4f 13 02 89 16  |.....E.4...O....|

00000030  6f f4 cb 8a 13 74 a2 ee  b7 27 69 b4 41 c0 90 68  |o....t...'i.A..h|
00000040  bc 02 69 e1 c6 48 4f 39  36 30 25 ca 4c 17 ce 83  |..i..HO960%.L...|
00000050  9e 08 56 e3 05 49 93 9e  2e c4 fb e6 c8 01 f1 0f  |..V..I..........|
00000060  c5 70 0f 08 83 48 e9 48  ef 6e 50 8b 05 7e e5 84  |.p...H.H.nP..~..|
00000070  25 fa 55 c7 ae 31 02 27  00 ef 3f 98 86 20 12 89  |%.U..1.'..?.. ..|

00000030  0f ff 01 00 01 00 00 17  00 00 00 0b 00 02 01 00  |................|
00000040  16 03 03 02 59 0b 00 02  55 00 02 52 00 02 4f 30  |....Y...U..R..O0|
00000050  82 02 4b 30 82 01 b4 a0  03 02 01 02 02 09 00 e8  |..K0............|
00000060  f0 9d 3f e2 5b ea a6 30  0d 06 09 2a 86 48 86 f7  |..?.[..0...*.H..|
00000070  0d 01 01 0b 05 00 30 1f  31 0b 30 09 06 03 55 04  |......0.1.0...U.|

var b1 = S{X: 1, Z: 3, Y: 2}

var a2 = S{0, 0, 0, 0, 0, 0}
var b2 = S{}

var a3 = T{S{1, 2, 3, 0, 0, 0}}
var b3 = T{S: S{A: 1, B: 2, C: 3}}

var a4 = &[16]byte{0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0}
var b4 = &[16]byte{4: 1, 1, 1, 1, 12: 1, 1}

var a5 = &[16]byte{1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0}
var b5 = &[16]byte{1, 4: 1, 1, 1, 1, 12: 1, 1}

var a6 = &[16]byte{1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0}