* cgraph.c (release_function_body): Break out from ...
	(cgraph_release_function_body): ... this one; also release DECL_RESULT
	and DECL_ARGUMENTS.
	* ipa-cp.c (get_replacement_map): Add parm_num argument; do not set
	old_tree in the map.
	(create_specialized_node): Update.
	* lto-cgraph.c (output_node_opt_summary): Do not translate old_tree
	into index.
	* cgraphclones.c (cgraph_create_virtual_clone): Do not copy DECL_ARGUMENTS,
	DECL_INITIAL and DECL_RESULT.
	* ipa-prop.c (ipa_populate_param_decls): Look for origin of clones.
	* tree-inline.c (initialize_cfun): Initialize DECL_ARGUMENTS and
	DECL_RESULT.

From-SVN: r201251