debug: close the goroutines window

Author: bhcleek

autoload/go/debug.vim

@@ -279,6 +279,7 @@ function! go#debug#Stop() abort
   silent! exe bufwinnr(bufnr('__GODEBUG_STACKTRACE__')) 'wincmd c'
   silent! exe bufwinnr(bufnr('__GODEBUG_VARIABLES__')) 'wincmd c'
   silent! exe bufwinnr(bufnr('__GODEBUG_OUTPUT__')) 'wincmd c'
+  silent! exe bufwinnr(bufnr('__GODEBUG_GOROUTINES__')) 'wincmd c'
 
   if has('balloon_eval')
     let &ballooneval=s:ballooneval