Note that pass_pre destroys PROP_no_crit_edges

2014-01-09  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-pre.c (pass_data_pre): Add comment about PROP_no_crit_edges
	in properties_required.  Add PROP_no_crit_edges to properties_destroyed.
	* tree-ssa-sink.c (pass_data_sink_code): Remove PROP_no_crit_edges
	from properties_required.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206517 138bc75d-0d04-0410-961f-82ee72b054a4