PR c++/57274
	* c-common.c (verify_tree): Don't recurse into SIZEOF_EXPR.

	* c-c++-common/Wsequence-point-1.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198903 138bc75d-0d04-0410-961f-82ee72b054a4