1  >var a = [10, 20, 30];

    ~~~~~~~~~~~~~~~~~~~~~~                        => Pos: (0 to 21)  SpanInfo: {"start":0,"length":20}
    >var a = [10, 20, 30]
    >:=> (line 1, col 0) to (line 1, col 20)
--------------------------------
2  >function foo(a: number) {

    ~~~~~~~~~~~~~~~~~~~~~~~~~~                    => Pos: (22 to 47)  SpanInfo: {"start":52,"length":8}
    >return a
    >:=> (line 3, col 4) to (line 3, col 12)
--------------------------------
3  >    return a;

    ~~~~~~~~~~~~~~                                => Pos: (48 to 61)  SpanInfo: {"start":52,"length":8}
    >return a
    >:=> (line 3, col 4) to (line 3, col 12)
--------------------------------
4  >}

    ~~                                            => Pos: (62 to 63)  SpanInfo: {"start":62,"length":1}
    >}
    >:=> (line 4, col 0) to (line 4, col 1)
--------------------------------
5  >a = [foo(30), (function () {

    ~~~~~                                         => Pos: (64 to 68)  SpanInfo: {"start":64,"length":49}
    >a = [foo(30), (function () {
    >    return 30;
    >})()]
    >:=> (line 5, col 0) to (line 7, col 5)
5  >a = [foo(30), (function () {

         ~~~~~~~~                                 => Pos: (69 to 76)  SpanInfo: {"start":69,"length":7}
    >foo(30)
    >:=> (line 5, col 5) to (line 5, col 12)
5  >a = [foo(30), (function () {

                 ~~                               => Pos: (77 to 78)  SpanInfo: {"start":78,"length":34}
    >(function () {
    >    return 30;
    >})()
    >:=> (line 5, col 14) to (line 7, col 4)
5  >a = [foo(30), (function () {

                   ~~~~~~~~~~~~~~                 => Pos: (79 to 92)  SpanInfo: {"start":97,"length":9}
    >return 30
    >:=> (line 6, col 4) to (line 6, col 13)
--------------------------------
6  >    return 30;

    ~~~~~~~~~~~~~~~                               => Pos: (93 to 107)  SpanInfo: {"start":97,"length":9}
    >return 30
    >:=> (line 6, col 4) to (line 6, col 13)
--------------------------------
7  >})()];

    ~                                             => Pos: (108 to 108)  SpanInfo: {"start":108,"length":1}
    >}
    >:=> (line 7, col 0) to (line 7, col 1)
7  >})()];

     ~~~                                          => Pos: (109 to 111)  SpanInfo: {"start":78,"length":34}
    >(function () {
    >    return 30;
    >})()
    >:=> (line 5, col 14) to (line 7, col 4)
7  >})()];

        ~~~                                       => Pos: (112 to 114)  SpanInfo: {"start":64,"length":49}
    >a = [foo(30), (function () {
    >    return 30;
    >})()]
    >:=> (line 5, col 0) to (line 7, col 5)
--------------------------------
8  >function bar() {

    ~~~~~~~~~~~~~~~~~                             => Pos: (115 to 131)  SpanInfo: {"start":136,"length":8}
    >return a
    >:=> (line 9, col 4) to (line 9, col 12)
--------------------------------
9  >    return a;

    ~~~~~~~~~~~~~~                                => Pos: (132 to 145)  SpanInfo: {"start":136,"length":8}
    >return a
    >:=> (line 9, col 4) to (line 9, col 12)
--------------------------------
10 >}

    ~~                                            => Pos: (146 to 147)  SpanInfo: {"start":146,"length":1}
    >}
    >:=> (line 10, col 0) to (line 10, col 1)
--------------------------------
11 >var x = bar()[0];

    ~~~~~~~                                       => Pos: (148 to 154)  SpanInfo: {"start":148,"length":16}
    >var x = bar()[0]
    >:=> (line 11, col 0) to (line 11, col 16)
11 >var x = bar()[0];

           ~~~~~~                                 => Pos: (155 to 160)  SpanInfo: {"start":156,"length":5}
    >bar()
    >:=> (line 11, col 8) to (line 11, col 13)
11 >var x = bar()[0];

                 ~~~~~                            => Pos: (161 to 165)  SpanInfo: {"start":148,"length":16}
    >var x = bar()[0]
    >:=> (line 11, col 0) to (line 11, col 16)
--------------------------------
12 >x = (function () {

    ~~~                                           => Pos: (166 to 168)  SpanInfo: {"start":166,"length":40}
    >x = (function () {
    >    return a;
    >})()[x]
    >:=> (line 12, col 0) to (line 14, col 7)
12 >x = (function () {

       ~~                                         => Pos: (169 to 170)  SpanInfo: {"start":170,"length":33}
    >(function () {
    >    return a;
    >})()
    >:=> (line 12, col 4) to (line 14, col 4)
12 >x = (function () {

         ~~~~~~~~~~~~~~                           => Pos: (171 to 184)  SpanInfo: {"start":189,"length":8}
    >return a
    >:=> (line 13, col 4) to (line 13, col 12)
--------------------------------
13 >    return a;

    ~~~~~~~~~~~~~~                                => Pos: (185 to 198)  SpanInfo: {"start":189,"length":8}
    >return a
    >:=> (line 13, col 4) to (line 13, col 12)
--------------------------------
14 >})()[x];

    ~                                             => Pos: (199 to 199)  SpanInfo: {"start":199,"length":1}
    >}
    >:=> (line 14, col 0) to (line 14, col 1)
14 >})()[x];

     ~~~                                          => Pos: (200 to 202)  SpanInfo: {"start":170,"length":33}
    >(function () {
    >    return a;
    >})()
    >:=> (line 12, col 4) to (line 14, col 4)
14 >})()[x];

        ~~~~~                                     => Pos: (203 to 207)  SpanInfo: {"start":166,"length":40}
    >x = (function () {
    >    return a;
    >})()[x]
    >:=> (line 12, col 0) to (line 14, col 7)
--------------------------------
15 >a[(function () {

    ~~                                            => Pos: (208 to 209)  SpanInfo: {"start":208,"length":36}
    >a[(function () {
    >    return x;
    >})()]
    >:=> (line 15, col 0) to (line 17, col 5)
15 >a[(function () {

      ~                                           => Pos: (210 to 210)  SpanInfo: {"start":210,"length":33}
    >(function () {
    >    return x;
    >})()
    >:=> (line 15, col 2) to (line 17, col 4)
15 >a[(function () {

       ~~~~~~~~~~~~~~                             => Pos: (211 to 224)  SpanInfo: {"start":229,"length":8}
    >return x
    >:=> (line 16, col 4) to (line 16, col 12)
--------------------------------
16 >    return x;

    ~~~~~~~~~~~~~~                                => Pos: (225 to 238)  SpanInfo: {"start":229,"length":8}
    >return x
    >:=> (line 16, col 4) to (line 16, col 12)
--------------------------------
17 >})()];
    ~                                             => Pos: (239 to 239)  SpanInfo: {"start":239,"length":1}
    >}
    >:=> (line 17, col 0) to (line 17, col 1)
17 >})()];
     ~~~                                          => Pos: (240 to 242)  SpanInfo: {"start":210,"length":33}
    >(function () {
    >    return x;
    >})()
    >:=> (line 15, col 2) to (line 17, col 4)
17 >})()];
        ~~                                        => Pos: (243 to 244)  SpanInfo: {"start":208,"length":36}
    >a[(function () {
    >    return x;
    >})()]
    >:=> (line 15, col 0) to (line 17, col 5)