PR ipa/60306

	Revert:
	2013-12-14   Jan Hubicka  <jh@suse.cz>
        PR middle-end/58477
        * ipa-prop.c (stmt_may_be_vtbl_ptr_store): Skip clobbers.

	* testsuite/g++.dg/ipa/devirt-29.C: New testcase

From-SVN: r208261