go s.closeConnChan(c, ch)
	}
	s.mu.Unlock()

	// Wait for outstanding closes to finish.
	//
	// Out of paranoia for making a late change in Go 1.6, we
	// bound how long this can wait, since golang.org/issue/14291
	// isn't fully understood yet. At least this should only be used
	// in tests.
	timer := time.NewTimer(5 * time.Second)
	defer timer.Stop()
	for i := 0; i < nconn; i++ {
		select {
		case <-ch:

	s = s[0:2]
	_ = s[0:4] // this is a valid slice of s

	for _, test := range []struct {
		name string
		s    []int
		i, j int
	}{
		{"with negative first index", []int{42}, -2, 1},
		{"with negative second index", []int{42}, 1, -1},
		{"with out-of-bounds first index", []int{42}, 2, 3},
		{"with out-of-bounds second index", []int{42}, 0, 2},
		{"with out-of-bounds both indexes", []int{42}, 2, 2},

00000350  a9 10 f0 4a 51 2c e3 1d  e3 59 28 f2 3b ea 66 c1  |...JQ,...Y(.;.f.|
00000360  ed 6a 8d 39 72 ea 5a 24  7a ee 9f cd 85 9d 54 60  |.j.9r.Z$z.....T`|
00000370  d4 95 fd 8d 63 a4 78 6c  2f 7d 6a a5 53 e4 42 97  |....c.xl/}j.S.B.|
00000380  e8 19 36 bf 14 9c a8 48  9f 57 ad 29 7a 30 e5 a9  |..6....H.W.)z0..|
00000390  32 e7 0f 24 9c ca 9d 6d  b7 47 46 1c cb 90 7d 18  |2..$...m.GF...}.|

#define SYS_read		4003
#define SYS_write		4004
#define SYS_open		4005
#define SYS_close		4006
#define SYS_getpid		4020
#define SYS_kill		4037
#define SYS_brk			4045
#define SYS_mmap		4090
#define SYS_munmap		4091
#define SYS_setitimer		4104
#define SYS_clone		4120
#define SYS_sched_yield		4162
#define SYS_nanosleep		4166
#define SYS_rt_sigreturn	4193
#define SYS_rt_sigaction	4194
#define SYS_rt_sigprocmask	4195

00000190  20 db 80 ce e0 c8 a7 1c  b2 62 fc 85 7d 87 ca 00  | ........b..}...|
000001a0  64 4c 25 4d 3c b2 bf 9d  46 c5 04 b5 dd 7a 29 87  |dL%M<...F....z).|
000001b0  29 30 2e bc 42 31 9b f2  eb 7b 58 63 91 28 6f 43  |)0..B1...{Xc.(oC|
000001c0  6b c1 4e 00 b2 4b 9d 0c  ef 18 5b 61 ec 77 84 e1  |k.N..K....[a.w..|
000001d0  88 49 f9 e2 71 2e 35 23  b8 73 6d c2 52 d1 2f ad  |.I..q.5#.sm.R./.|

	REG_CR6EQ
	REG_CR6SO
	REG_CR7LT
	REG_CR7GT
	REG_CR7EQ
	REG_CR7SO

	/* Align FPR and VSR vectors such that when masked with 0x3F they produce
	   an equivalent VSX register. */
	/* F0=4160 ... F31=4191 */
	REG_F0
	REG_F1
	REG_F2
	REG_F3
	REG_F4
	REG_F5
	REG_F6
	REG_F7
	REG_F8
	REG_F9
	REG_F10
	REG_F11
	REG_F12
	REG_F13
	REG_F14
	REG_F15
	REG_F16
	REG_F17

00000180  05 26 cc d8 a8 4a a9 b1  67 71 a6 82 1c dc f0 15  |.&...J..gq......|
00000190  6d 25 f5 6e be a2 5f 45  39 dc d1 2e df fa e1 e9  |m%.n.._E9.......|
000001a0  48 ca 7a 78 fa 0e 53 d1  5c 8f c2 40 91 d5 fa 40  |H.zx..S.\..@...@|
000001b0  7e a1 52 23 c8 56 1f 31  17 91 5c 38 bb 54 56 f3  |~.R#.V.1..\8.TV.|
000001c0  1e 14 90 43 b7 ef fd 56  b5 ae 13 90 97 dc 60 15  |...C...V......`.|

		case extensionPSKModes:
			// RFC 8446, Section 4.2.9
			if !readUint8LengthPrefixed(&extData, &m.pskModes) {
				return false
			}
		case extensionQUICTransportParameters:
			m.quicTransportParameters = make([]byte, len(extData))
			if !extData.CopyBytes(m.quicTransportParameters) {
				return false
			}
		case extensionPreSharedKey:
			// RFC 8446, Section 4.2.11
			if !extensions.Empty() {

				BaseChunkIdx: {{0, 192}},
			},
		},
		"AllFree65": {
			before: map[ChunkIdx][]BitRange{
				BaseChunkIdx: {},
			},
			scav: map[ChunkIdx][]BitRange{
				BaseChunkIdx: {{129, 1}},
			},
			hits: []hit{
				{65, PageBase(BaseChunkIdx, 0), 0},
				{65, PageBase(BaseChunkIdx, 65), PageSize},
				{65, PageBase(BaseChunkIdx, 130), 0},
			},
			after: map[ChunkIdx][]BitRange{

  integrity sha512-W4N+o69rkMEGVuk2D/cvca3uYsvGlMwsySWV447y99gUPghxq42BxqLNMndb+a1mm/5/7NeXVQS7RLa2XyXvYg==

socket.io-parser@~4.2.1:
  version "4.2.1"
  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-4.2.1.tgz#01c96efa11ded938dcb21cbe590c26af5eff65e5"
  integrity sha512-V4GrkLy+HeF1F/en3SpUaM+7XxYXpuMUWLGde1kSSh5nQMN4hLrbPIkD+otwh6q9R6NOQBN4AMaOZ2zVjui82g==
  dependencies: