forward parse for switch statement (#1051)

* forward parse for switch statement

* Update javascript.vim

Author: bounceme

indent/javascript.vim

@@ -282,10 +282,8 @@ function s:IsContOne(num,cont)
 endfunction
 
 function s:IsSwitch()
-  return s:PreviousToken() !~ '[.*]' &&
-        \ (!s:GetPair('{','}','cbW',s:skip_expr) || s:IsBlock() &&
-        \ (s:Token() !=# 'class' && s:PreviousToken() !~# '^class$\|^extends$' ||
-        \ s:PreviousToken() == '.'))
+  call call('cursor',b:js_cache[1:])
+  return search('\m\C\%#.\_s*\%(\%(\/\/.*\_$\|\/\*\_.\{-}\*\/\)\@>\_s*\)*\%(case\|default\)\>','nWc'.s:z)
 endfunction
 
 " https://github.com/sweet-js/sweet.js/wiki/design#give-lookbehind-to-the-reader