Remove newline token

Author: inaki-amatria

grammar.js

@@ -100,8 +100,9 @@ module.exports = grammar({
     [$.rank_statement],
     [$.stop_statement, $.identifier],
     [$.type_statement],
-    [$.preproc_ifdef_in_specification_part, $.program],
     [$.preproc_else_in_specification_part, $.program],
+    [$.preproc_if_in_specification_part, $.program],
+    [$._preproc_expression, $._expression],
     [$.coarray_critical_statement, $.identifier],
   ],
 
@@ -2352,7 +2353,6 @@ function preprocIf(suffix, content, precedence = 0) {
       preprocessor('if'),
       field('condition', $._preproc_expression),
       optional($.preproc_comment),
-      '\n',
       field('content', content($)),
       field('alternative', optional(alternativeBlock($))),
       preprocessor('endif'),
@@ -2379,7 +2379,6 @@ function preprocIf(suffix, content, precedence = 0) {
       preprocessor('elif'),
       optional($.preproc_comment),
       field('condition', $._preproc_expression),
-      '\n',
       field('content', content($)),
       field('alternative', optional(alternativeBlock($))),
     )),