Web Inspector: JS Pretty Printing - Some comments get lost

[Joseph Pecoraro]

* SUMMARY
JS Pretty Printing - Some comments get lost.

* TEST
{
  1;
  // Test
}

* RESULTS
{
    1;

}

* EXPECTED
{
    1;
    // Test
}

* DEBUG
BlockStatement            Punctuator           {
Literal                   Numeric              1
ExpressionStatement       Punctuator           ;
** T Comment (1)          Line                  Test
BlockStatement            Punctuator           }

* NOTES
This is apparently a bad arrangement of Punctuators and Comments which ends up having this comment only as a "Trailing" comment for the Expression and not a "Leading" comment for the block... Not sure where it would be best to handle this comment.

[Alexey Proskuryakov]

<rdar://problem/28213724>