* tree.h (tree_vec_elt_check): Workaround -Wstrict-overflow
	false positive during profiledbootstrap.
	* decl.c (attr_decl1): Workaround -Wmaybe-uninitialized
	false positive during profiledbootstrap by initializing them.
	* matchexp.c (match_mult_operand): Likewise.
	* module.c (write_atom): Likewise.
	(read_module): Likewise.

From-SVN: r220042