Blocks are checked (checkUserBlock).
Change-Id: I3a164d1003f2bea3e3e07081c9bebfabd884ade9
/**
* Can $user perform $action on this page? This is an internal function,
- * which checks ONLY that previously checked by userCan (i.e. it leaves out
- * checks on wfReadOnly() and blocks)
+ * with multiple levels of checks depending on performance needs; see $rigor below.
+ * It does not check wfReadOnly().
*
* @param string $action Action that permission needs to be checked for
* @param User $user User to check