DESCRIPTION:

When we have a privilege error in the underlying table of a view,
an error processor is supposed to suppress this error and instead
supply a more general error, so that we do not reveal any details
about the contents of a view. However, with STRICT mode set, this
suppression does not happen.

ANALYSIS :

There were two mechanisms that handle errors for views. First,
TABLE_LIST::hide_view_error() and second is an Internal_error_handler,
Show_create_error_handler. These two methods should not clash.
In TABLE_LIST::hide_view_error(), we check if Internal_error_handler
exists or not. If an Internal error handler exists, we exit assuming
it to be Show_create_error_handler. With WL#6614 and WL#6891, we
push Internal_error_handler before executing a statement. Hence, an
Internal_error_handler is always present in STRICT mode or if
IGNORE keyword is used. Thus, hide_view_error() will return without
suppressing the error.

FIX :

Created View_error_handler based on Internal_error_handler instead
of TABLE_LIST::hide_view_error(). Used this handler to hide details
of the view in error messages.