move TS_STATEMENT_LIST to be a substructure of TS_TYPED
gcc/
	* c-decl.c (c_push_function_context): Copy the current statement
	list stack.
	(add_stmt): Check building_stmt_list_p and push_stmt if necessary.
	(finish_struct): Call building_stmt_list_p instead of checking
	cur_stmt_list.
	* c-parser.c (c_parser_postfix_expression): Likewise.
	* c-typeck.c (c_end_compound_stmt): Likewise.
	* print-tree.c (print_node) [STATEMENT_LIST]: Don't print TREE_CHAIN.
	* tree-iterator.c (stmt_list_cache): Change to a VEC.
	(alloc_stmt_list): Adjust for stmt_list_cache's new type.
	(free_stmt_list): Likewise.
	* tree.h (struct tree_statement_list): Include typed_tree instead
	of tree_common.
	* tree.c (initialize_tree_contains_struct): Mark TS_STATEMENT_LIST
	as TS_TYPED instead of TS_COMMON.

gcc/c-family/
	* c-common.h (struct stmt_tree_s) [x_cur_stmt_list]: Change to a VEC.
	(stmt_list_stack): Define.
	(cur_stmt_list): Adjust for new type of x_cur_stmt_list.
	* c-semantics.c (push_stmt_list, pop_stmt_list): Likewise.

gcc/cp/
	* cp-tree.h (building_stmt_tree): Delete.
	* decl.c (save_function_data): Tweak initializer for x_cur_stmt_list.
	(build_aggr_init_full_exprs): Call building_stmt_list_p
	instead of building_stmt_tree.
	(initialize_local_var): Likewise.
	(finish_function): Likewise.
	* decl2.c (finish_anon_union): Likewise.
	* init.c (begin_init_stmts): Likewise.
	(finish_init_stmts): Likewise.
	(expand_aggr_init_1): Likewise.
	* name-lookup.c (do_local_using_decl): Likewise.
	(do_namespace_alias): Likewise.
	(do_using_directive): Likewise.
	(cp_emit_debug_info_for_using): Likewise.
	* semantics.c (add_stmt): Assert that stmt_list_stack is non-empty.

From-SVN: r174343