fix blocks after case statement

Author: bounceme

indent/javascript.vim

@@ -84,7 +84,7 @@ endfunction
 function s:IsBlock()
   return getline(line('.'))[col('.')-1] == '{' && !search(
         \ '\C\%(\<return\s*\|\%([-=~!<*+,.:?^%|&\[(]\|=\@<!>\|\*\@<!\/\|\<\%(var\|const\|let\|import\|export\%(\_s\+default\)\=\|yield\|delete\|void\|t\%(ypeof\|hrow\)\|new\|in\%(stanceof\)\=\)\)\_s*\)\%#','bnW') &&
-        \ (!search('{\_s*\%#','bW') || s:IsBlock())
+        \ (!search('\%({\|:\zs\)\_s*\%#','bW') || search(s:expr_case . '\%#' ,'nbW') || s:IsBlock())
 endfunction
 
 " Auxiliary Functions {{{2