Hide newline characters

Author: inaki-amatria

grammar.js

@@ -2352,7 +2352,7 @@ function preprocIf(suffix, content, precedence = 0) {
       preprocessor('if'),
       field('condition', $._preproc_expression),
       optional($.preproc_comment),
-      '\n',
+      $._newline,
       field('content', content($)),
       field('alternative', optional(alternativeBlock($))),
       preprocessor('endif'),
@@ -2379,7 +2379,7 @@ function preprocIf(suffix, content, precedence = 0) {
       preprocessor('elif'),
       optional($.preproc_comment),
       field('condition', $._preproc_expression),
-      '\n',
+      $._newline,
       field('content', content($)),
       field('alternative', optional(alternativeBlock($))),
     )),