Fixing another funky comment situation

Author: amadeus

syntax/javascript.vim

@@ -171,7 +171,7 @@ syntax match   jsArrowFuncArgs  /\k\+\s*\%(=>\)\@=/ skipwhite contains=jsFuncArg
 syntax match   jsArrowFuncArgs  /([^()]*)\s*\(=>\)\@=/ contains=jsFuncArgs skipempty skipwhite nextgroup=jsArrowFunction extend
 
 exe 'syntax match jsFunction /\<function\>/ skipwhite skipempty nextgroup=jsGenerator,jsFuncName,jsFuncArgs skipwhite '.(exists('g:javascript_conceal_function')       ? 'conceal cchar='.g:javascript_conceal_function : '')
-exe 'syntax match jsArrowFunction /=>/      skipwhite skipempty nextgroup=jsFuncBlock contains=jsFuncBraces           '.(exists('g:javascript_conceal_arrow_function') ? 'conceal cchar='.g:javascript_conceal_arrow_function : '')
+exe 'syntax match jsArrowFunction /=>/      skipwhite skipempty nextgroup=jsFuncBlock,jsCommentFunction               '.(exists('g:javascript_conceal_arrow_function') ? 'conceal cchar='.g:javascript_conceal_arrow_function : '')
 
 " Classes
 syntax keyword jsClassKeywords          contained extends class