1  >var greetings = 0;

    ~~~~~~~~~~~~~~~~~~~                           => Pos: (0 to 18)  SpanInfo: {"start":0,"length":17}
    >var greetings = 0
    >:=> (line 1, col 0) to (line 1, col 17)
--------------------------------
2  >var greet = (greeting: string): number => {

    ~~~~~~~~~~~                                   => Pos: (19 to 29)  SpanInfo: {"start":19,"length":84}
    >var greet = (greeting: string): number => {
    >    greetings++;
    >    return greetings;
    >}
    >:=> (line 2, col 0) to (line 5, col 1)
2  >var greet = (greeting: string): number => {

               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  => Pos: (30 to 62)  SpanInfo: {"start":67,"length":11}
    >greetings++
    >:=> (line 3, col 4) to (line 3, col 15)
--------------------------------
3  >    greetings++;

    ~~~~~~~~~~~~~~~~~                             => Pos: (63 to 79)  SpanInfo: {"start":67,"length":11}
    >greetings++
    >:=> (line 3, col 4) to (line 3, col 15)
--------------------------------
4  >    return greetings;

    ~~~~~~~~~~~~~~~~~~~~~~                        => Pos: (80 to 101)  SpanInfo: {"start":84,"length":16}
    >return greetings
    >:=> (line 4, col 4) to (line 4, col 20)
--------------------------------
5  >}

    ~~                                            => Pos: (102 to 103)  SpanInfo: {"start":102,"length":1}
    >}
    >:=> (line 5, col 0) to (line 5, col 1)
--------------------------------
6  >greet("Hello");

    ~~~~~~~~~~~~~~~~                              => Pos: (104 to 119)  SpanInfo: {"start":104,"length":14}
    >greet("Hello")
    >:=> (line 6, col 0) to (line 6, col 14)
--------------------------------
7  >var incrGreetings = () => greetings++;

    ~~~~~~~~~~~~~~~~~~~                           => Pos: (120 to 138)  SpanInfo: {"start":120,"length":37}
    >var incrGreetings = () => greetings++
    >:=> (line 7, col 0) to (line 7, col 37)
7  >var incrGreetings = () => greetings++;

                       ~~~~~~~~~~~~~~~~~~~~       => Pos: (139 to 158)  SpanInfo: {"start":146,"length":11}
    >greetings++
    >:=> (line 7, col 26) to (line 7, col 37)
--------------------------------
8  >var greetNewMsg = msg => greet(msg);

    ~~~~~~~~~~~~~~~~~                             => Pos: (159 to 175)  SpanInfo: {"start":159,"length":35}
    >var greetNewMsg = msg => greet(msg)
    >:=> (line 8, col 0) to (line 8, col 35)
8  >var greetNewMsg = msg => greet(msg);

                     ~~~~~~~~~~~~~~~~~~~~         => Pos: (176 to 195)  SpanInfo: {"start":184,"length":10}
    >greet(msg)
    >:=> (line 8, col 25) to (line 8, col 35)
--------------------------------
9  >greetNewMsg = function (msg: string) {

    ~~~~~~~~~~~~~                                 => Pos: (196 to 208)  SpanInfo: {"start":196,"length":63}
    >greetNewMsg = function (msg: string) {
    >    return greet(msg);
    >}
    >:=> (line 9, col 0) to (line 11, col 1)
9  >greetNewMsg = function (msg: string) {

                 ~~~~~~~~~~~~~~~~~~~~~~~~~~       => Pos: (209 to 234)  SpanInfo: {"start":239,"length":17}
    >return greet(msg)
    >:=> (line 10, col 4) to (line 10, col 21)
--------------------------------
10 >    return greet(msg);

    ~~~~~~~~~~                                    => Pos: (235 to 244)  SpanInfo: {"start":239,"length":17}
    >return greet(msg)
    >:=> (line 10, col 4) to (line 10, col 21)
10 >    return greet(msg);

              ~~~~~~~~~~~~~                       => Pos: (245 to 257)  SpanInfo: {"start":246,"length":10}
    >greet(msg)
    >:=> (line 10, col 11) to (line 10, col 21)
--------------------------------
11 >};

    ~~~                                           => Pos: (258 to 260)  SpanInfo: {"start":258,"length":1}
    >}
    >:=> (line 11, col 0) to (line 11, col 1)
--------------------------------
12 >function bar(a = function foo() {

    ~~~~~~~~~~~~~                                 => Pos: (261 to 273)  SpanInfo: {"start":326,"length":9}
    >if (!a())
    >:=> (line 15, col 4) to (line 15, col 13)
12 >function bar(a = function foo() {

                 ~~~                              => Pos: (274 to 276)  SpanInfo: {"start":274,"length":44}
    >a = function foo() {
    >    return greetings;
    >}
    >:=> (line 12, col 13) to (line 14, col 1)
12 >function bar(a = function foo() {

                    ~~~~~~~~~~~~~~~~~~            => Pos: (277 to 294)  SpanInfo: {"start":299,"length":16}
    >return greetings
    >:=> (line 13, col 4) to (line 13, col 20)
--------------------------------
13 >    return greetings;

    ~~~~~~~~~~~~~~~~~~~~~~                        => Pos: (295 to 316)  SpanInfo: {"start":299,"length":16}
    >return greetings
    >:=> (line 13, col 4) to (line 13, col 20)
--------------------------------
14 >}) {

    ~~                                            => Pos: (317 to 318)  SpanInfo: {"start":317,"length":1}
    >}
    >:=> (line 14, col 0) to (line 14, col 1)
14 >}) {

      ~~~                                         => Pos: (319 to 321)  SpanInfo: {"start":326,"length":9}
    >if (!a())
    >:=> (line 15, col 4) to (line 15, col 13)
--------------------------------
15 >    if (!a()) {

    ~~~~~~~~~                                     => Pos: (322 to 330)  SpanInfo: {"start":326,"length":9}
    >if (!a())
    >:=> (line 15, col 4) to (line 15, col 13)
15 >    if (!a()) {

             ~~~                                  => Pos: (331 to 333)  SpanInfo: {"start":331,"length":3}
    >a()
    >:=> (line 15, col 9) to (line 15, col 12)
15 >    if (!a()) {

                ~~~~                              => Pos: (334 to 337)  SpanInfo: {"start":326,"length":9}
    >if (!a())
    >:=> (line 15, col 4) to (line 15, col 13)
--------------------------------
16 >        return a;

    ~~~~~~~~~~~~~~~~~~                            => Pos: (338 to 355)  SpanInfo: {"start":346,"length":8}
    >return a
    >:=> (line 16, col 8) to (line 16, col 16)
--------------------------------
17 >    }

    ~~~~~~                                        => Pos: (356 to 361)  SpanInfo: {"start":346,"length":8}
    >return a
    >:=> (line 16, col 8) to (line 16, col 16)
--------------------------------
18 >    return function bar() {

    ~~~~~~~~~~                                    => Pos: (362 to 371)  SpanInfo: {"start":366,"length":56}
    >return function bar() {
    >        return -greetings;
    >    }
    >:=> (line 18, col 4) to (line 20, col 5)
18 >    return function bar() {

              ~~~~~~~~~~~~~~~~~~                  => Pos: (372 to 389)  SpanInfo: {"start":398,"length":17}
    >return -greetings
    >:=> (line 19, col 8) to (line 19, col 25)
--------------------------------
19 >        return -greetings;

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~                   => Pos: (390 to 416)  SpanInfo: {"start":398,"length":17}
    >return -greetings
    >:=> (line 19, col 8) to (line 19, col 25)
--------------------------------
20 >    };

    ~~~~~~~                                       => Pos: (417 to 423)  SpanInfo: {"start":421,"length":1}
    >}
    >:=> (line 20, col 4) to (line 20, col 5)
--------------------------------
21 >}
    ~                                             => Pos: (424 to 424)  SpanInfo: {"start":424,"length":1}
    >}
    >:=> (line 21, col 0) to (line 21, col 1)