Improve guard so it works for no eof new line

syntax/basic/decorator.vim

@@ -1,5 +1,7 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'typescript') == -1
+
 syntax match typescriptDecorator /@\([_$a-zA-Z][_$a-zA-Z0-9]*\.\)*[_$a-zA-Z][_$a-zA-Z0-9]*\>/
   \ nextgroup=typescriptArgumentList,typescriptTypeArguments
   \ contains=@_semantic,typescriptDotNotation
+
 endif