test/tall/expression/map_preserve_newlines.stmt

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### Tests for how a line comment in a map literal causes newlines to be kept.
>>> Preserve newlines if map contains a line comment.
var map = {
  // yeah
  a:1,b:2,c:3,d:4,
  e:5,f:6,g:7,h:8
};
<<<
var map = {
  // yeah
  a: 1, b: 2, c: 3, d: 4,
  e: 5, f: 6, g: 7, h: 8,
};
>>> Don't preserve newlines if line comment is inside an element.
var map = {
  a: 1, b: 2, c: 3,
  d: // c
  4,
};
<<<
var map = {
  a: 1,
  b: 2,
  c: 3,
  d: // c
      4,
};
>>> Wrap between elements when newlines are preserved if they don't fit.
var map = {
  element1: 1, element2: 2, element3: 3, element4: 4, element5: 5,

  element6: 6, element7: 7,

  // comment
  element8: 8, element9: 9, element10: 10, element11: 11,
};
<<<
var map = {
  element1: 1,
  element2: 2,
  element3: 3,
  element4: 4,
  element5: 5,

  element6: 6, element7: 7,

  // comment
  element8: 8,
  element9: 9,
  element10: 10,
  element11: 11,
};