40 columns                              |
>>> Line comment before adjacent string.
string = // comment
'adjacent' 'string';
<<<
string = // comment
    'adjacent'
    'string';
>>> Line comment inside adjacent string.
string = 'adjacent' // comment
'string';
<<<
string =
    'adjacent' // comment
    'string';
>>>
string = 'adjacent'
// comment
'string';
<<<
string =
    'adjacent'
    // comment
    'string';
>>> Line comment after adjacent string.
### Looks weird but users don't put comment here.
string = 'adjacent' 'string' // comment
;
<<<
string =
    'adjacent'
    'string' // comment
    ;
>>> Inline block comment before adjacent string.
string = /* comment */ 'adjacent' 'string';
<<<
string = /* comment */
    'adjacent'
    'string';
>>> Inline block comment inside adjacent string.
string = 'adjacent' /* comment */ 'string';
<<<
string =
    'adjacent' /* comment */
    'string';
>>>
string = 'adjacent'
/* comment */
'string';
<<<
string =
    'adjacent'
    /* comment */
    'string';
>>> Inline block comment after adjacent string.
string = 'adjacent' 'string' /* comment */;
<<<
string =
    'adjacent'
    'string' /* comment */;