Change is-a.h to support typedefs of pointers

Change is-a.h to support typedefs of pointers

gcc/
	* is-a.h: Update comments to reflect the following changes to the
	"pointerness" of the API, making the template parameter match the
	return type, allowing use of is-a.h with typedefs of pointers.
	(is_a_helper::cast): Return a T rather then a pointer to a T, so
	that the return type matches the parameter to the is_a_helper.
	(as_a): Likewise.
	(dyn_cast): Likewise.

	* cgraph.c (cgraph_node_for_asm): Update for removal of implicit
	pointer from the is-a.h API.

	* cgraph.h (is_a_helper <cgraph_node>::test): Convert to...
	(is_a_helper <cgraph_node *>::test): ...this, matching change to
	is-a.h API.
	(is_a_helper <varpool_node>::test): Likewise, convert to...
	(is_a_helper <varpool_node *>::test): ...this.

	(varpool_first_variable): Update for removal of implicit pointer
	from the is-a.h API.
	(varpool_next_variable): Likewise.
	(varpool_first_static_initializer): Likewise.
	(varpool_next_static_initializer): Likewise.
	(varpool_first_defined_variable): Likewise.
	(varpool_next_defined_variable): Likewise.
	(cgraph_first_defined_function): Likewise.
	(cgraph_next_defined_function): Likewise.
	(cgraph_first_function): Likewise.
	(cgraph_next_function): Likewise.
	(cgraph_first_function_with_gimple_body): Likewise.
	(cgraph_next_function_with_gimple_body): Likewise.
	(cgraph_alias_target): Likewise.
	(varpool_alias_target): Likewise.
	(cgraph_function_or_thunk_node): Likewise.
	(varpool_variable_node): Likewise.
	(symtab_real_symbol_p): Likewise.
	* cgraphunit.c (referred_to_p): Likewise.
	(analyze_functions): Likewise.
	(handle_alias_pairs): Likewise.
	* gimple-fold.c (can_refer_decl_in_current_unit_p): Likewise.
	* gimple-ssa.h (gimple_vuse_op): Likewise.
	(gimple_vdef_op): Likewise.
	* gimple-streamer-in.c (input_gimple_stmt): Likewise.
	* gimple.c (gimple_build_asm_1): Likewise.
	(gimple_build_try): Likewise.
	(gimple_build_resx): Likewise.
	(gimple_build_eh_dispatch): Likewise.
	(gimple_build_omp_for): Likewise.
	(gimple_omp_for_set_clauses): Likewise.

	* gimple.h (is_a_helper <gimple_statement_asm>::test): Convert to...
	(is_a_helper <gimple_statement_asm *>::test): ...this.
	(is_a_helper <gimple_statement_bind>::test): Convert to...
	(is_a_helper <gimple_statement_bind *>::test): ...this.
	(is_a_helper <gimple_statement_call>::test): Convert to...
	(is_a_helper <gimple_statement_call *>::test): ...this.
	(is_a_helper <gimple_statement_catch>::test): Convert to...
	(is_a_helper <gimple_statement_catch *>::test): ...this.
	(is_a_helper <gimple_statement_resx>::test): Convert to...
	(is_a_helper <gimple_statement_resx *>::test): ...this.
	(is_a_helper <gimple_statement_eh_dispatch>::test): Convert to...
	(is_a_helper <gimple_statement_eh_dispatch *>::test): ...this.
	(is_a_helper <gimple_statement_eh_else>::test): Convert to...
	(is_a_helper <gimple_statement_eh_else *>::test): ...this.
	(is_a_helper <gimple_statement_eh_filter>::test): Convert to...
	(is_a_helper <gimple_statement_eh_filter *>::test): ...this.
	(is_a_helper <gimple_statement_eh_mnt>::test): Convert to...
	(is_a_helper <gimple_statement_eh_mnt *>::test): ...this.
	(is_a_helper <gimple_statement_omp_atomic_load>::test): Convert to...
	(is_a_helper <gimple_statement_omp_atomic_load *>::test): ...this.
	(is_a_helper <gimple_statement_omp_atomic_store>::test): Convert to...
	(is_a_helper <gimple_statement_omp_atomic_store *>::test): ...this.
	(is_a_helper <gimple_statement_omp_return>::test): Convert to...
	(is_a_helper <gimple_statement_omp_return *>::test): ...this.
	(is_a_helper <gimple_statement_omp_continue>::test): Convert to...
	(is_a_helper <gimple_statement_omp_continue *>::test): ...this.
	(is_a_helper <gimple_statement_omp_critical>::test): Convert to...
	(is_a_helper <gimple_statement_omp_critical *>::test): ...this.
	(is_a_helper <gimple_statement_omp_for>::test): Convert to...
	(is_a_helper <gimple_statement_omp_for *>::test): ...this.
	(is_a_helper <gimple_statement_omp_taskreg>::test): Convert to...
	(is_a_helper <gimple_statement_omp_taskreg *>::test): ...this.
	(is_a_helper <gimple_statement_omp_parallel>::test): Convert to...
	(is_a_helper <gimple_statement_omp_parallel *>::test): ...this.
	(is_a_helper <gimple_statement_omp_target>::test): Convert to...
	(is_a_helper <gimple_statement_omp_target *>::test): ...this.
	(is_a_helper <gimple_statement_omp_sections>::test): Convert to...
	(is_a_helper <gimple_statement_omp_sections *>::test): ...this.
	(is_a_helper <gimple_statement_omp_single>::test): Convert to...
	(is_a_helper <gimple_statement_omp_single *>::test): ...this.
	(is_a_helper <gimple_statement_omp_teams>::test): Convert to...
	(is_a_helper <gimple_statement_omp_teams *>::test): ...this.
	(is_a_helper <gimple_statement_omp_task>::test): Convert to...
	(is_a_helper <gimple_statement_omp_task *>::test): ...this.
	(is_a_helper <gimple_statement_phi>::test): Convert to...
	(is_a_helper <gimple_statement_phi *>::test): ...this.
	(is_a_helper <gimple_statement_transaction>::test): Convert to...
	(is_a_helper <gimple_statement_transaction *>::test): ...this.
	(is_a_helper <gimple_statement_try>::test): Convert to...
	(is_a_helper <gimple_statement_try *>::test): ...this.
	(is_a_helper <gimple_statement_wce>::test): Convert to...
	(is_a_helper <gimple_statement_wce *>::test): ...this.
	(is_a_helper <const gimple_statement_asm>::test): Convert to...
	(is_a_helper <const gimple_statement_asm *>::test): ...this.
	(is_a_helper <const gimple_statement_bind>::test): Convert to...
	(is_a_helper <const gimple_statement_bind *>::test): ...this.
	(is_a_helper <const gimple_statement_call>::test): Convert to...
	(is_a_helper <const gimple_statement_call *>::test): ...this.
	(is_a_helper <const gimple_statement_catch>::test): Convert to...
	(is_a_helper <const gimple_statement_catch *>::test): ...this.
	(is_a_helper <const gimple_statement_resx>::test): Convert to...
	(is_a_helper <const gimple_statement_resx *>::test): ...this.
	(is_a_helper <const gimple_statement_eh_dispatch>::test):
	Convert to...
	(is_a_helper <const gimple_statement_eh_dispatch *>::test):
	...this.
	(is_a_helper <const gimple_statement_eh_filter>::test): Convert
	to...
	(is_a_helper <const gimple_statement_eh_filter *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_atomic_load>::test):
	Convert to...
	(is_a_helper <const gimple_statement_omp_atomic_load *>::test):
	...this.
	(is_a_helper <const gimple_statement_omp_atomic_store>::test):
	Convert to...
	(is_a_helper <const gimple_statement_omp_atomic_store *>::test):
	...this.
	(is_a_helper <const gimple_statement_omp_return>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_return *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_continue>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_continue *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_critical>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_critical *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_for>::test): Convert to...
	(is_a_helper <const gimple_statement_omp_for *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_taskreg>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_taskreg *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_parallel>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_parallel *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_target>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_target *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_sections>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_sections *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_single>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_single *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_teams>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_teams *>::test): ...this.
	(is_a_helper <const gimple_statement_omp_task>::test): Convert
	to...
	(is_a_helper <const gimple_statement_omp_task *>::test): ...this.
	(is_a_helper <const gimple_statement_phi>::test): Convert to...
	(is_a_helper <const gimple_statement_phi *>::test): ...this.
	(is_a_helper <const gimple_statement_transaction>::test): Convert
	to...
	(is_a_helper <const gimple_statement_transaction *>::test): ...this.
	(is_a_helper <const gimple_statement_with_ops>::test): Convert
	to...
	(is_a_helper <const gimple_statement_with_ops *>::test): ...this.
	(is_a_helper <gimple_statement_with_ops>::test): Convert to...
	(is_a_helper <gimple_statement_with_ops *>::test): ...this.
	(is_a_helper <const gimple_statement_with_memory_ops>::test):
	Convert to...
	(is_a_helper <const gimple_statement_with_memory_ops *>::test):
	...this.
	(is_a_helper <gimple_statement_with_memory_ops>::test): Convert
	to...
	(is_a_helper <gimple_statement_with_memory_ops *>::test): ...this.

	(gimple_use_ops): Update for removal of implicit pointer from the
	is-a.h API.
	(gimple_set_use_ops): Likewise.
	(gimple_vuse): Likewise.
	(gimple_vdef): Likewise.
	(gimple_vuse_ptr): Likewise.
	(gimple_vdef_ptr): Likewise.
	(gimple_set_vuse): Likewise.
	(gimple_set_vdef): Likewise.
	(gimple_omp_return_set_lhs): Likewise.
	(gimple_omp_return_lhs): Likewise.
	(gimple_omp_return_lhs_ptr): Likewise.
	(gimple_call_fntype): Likewise.
	(gimple_call_set_fntype): Likewise.
	(gimple_call_set_internal_fn): Likewise.
	(gimple_call_use_set): Likewise.
	(gimple_call_clobber_set): Likewise.
	(gimple_bind_vars): Likewise.
	(gimple_bind_set_vars): Likewise.
	(gimple_bind_body_ptr): Likewise.
	(gimple_bind_set_body): Likewise.
	(gimple_bind_add_stmt): Likewise.
	(gimple_bind_block): Likewise.
	(gimple_bind_set_block): Likewise.
	(gimple_asm_ninputs): Likewise.
	(gimple_asm_noutputs): Likewise.
	(gimple_asm_nclobbers): Likewise.
	(gimple_asm_nlabels): Likewise.
	(gimple_asm_input_op): Likewise.
	(gimple_asm_input_op_ptr): Likewise.
	(gimple_asm_output_op): Likewise.
	(gimple_asm_output_op_ptr): Likewise.
	(gimple_asm_set_output_op): Likewise.
	(gimple_asm_clobber_op): Likewise.
	(gimple_asm_set_clobber_op): Likewise.
	(gimple_asm_label_op): Likewise.
	(gimple_asm_set_label_op): Likewise.
	(gimple_asm_string): Likewise.
	(gimple_catch_types): Likewise.
	(gimple_catch_types_ptr): Likewise.
	(gimple_catch_handler_ptr): Likewise.
	(gimple_catch_set_types): Likewise.
	(gimple_catch_set_handler): Likewise.
	(gimple_eh_filter_types): Likewise.
	(gimple_eh_filter_types_ptr): Likewise.
	(gimple_eh_filter_failure_ptr): Likewise.
	(gimple_eh_filter_set_types): Likewise.
	(gimple_eh_filter_set_failure): Likewise.
	(gimple_eh_must_not_throw_fndecl): Likewise.
	(gimple_eh_must_not_throw_set_fndecl): Likewise.
	(gimple_eh_else_n_body_ptr): Likewise.
	(gimple_eh_else_e_body_ptr): Likewise.
	(gimple_eh_else_set_n_body): Likewise.
	(gimple_eh_else_set_e_body): Likewise.
	(gimple_try_eval_ptr): Likewise.
	(gimple_try_cleanup_ptr): Likewise.
	(gimple_try_set_eval): Likewise.
	(gimple_try_set_cleanup): Likewise.
	(gimple_wce_cleanup_ptr): Likewise.
	(gimple_wce_set_cleanup): Likewise.
	(gimple_phi_capacity): Likewise.
	(gimple_phi_num_args): Likewise.
	(gimple_phi_result): Likewise.
	(gimple_phi_result_ptr): Likewise.
	(gimple_phi_set_result): Likewise.
	(gimple_phi_arg): Likewise.
	(gimple_phi_set_arg): Likewise.
	(gimple_resx_region): Likewise.
	(gimple_resx_set_region): Likewise.
	(gimple_eh_dispatch_region): Likewise.
	(gimple_eh_dispatch_set_region): Likewise.
	(gimple_omp_critical_name): Likewise.
	(gimple_omp_critical_name_ptr): Likewise.
	(gimple_omp_critical_set_name): Likewise.
	(gimple_omp_for_clauses): Likewise.
	(gimple_omp_for_clauses_ptr): Likewise.
	(gimple_omp_for_set_clauses): Likewise.
	(gimple_omp_for_collapse): Likewise.
	(gimple_omp_for_index): Likewise.
	(gimple_omp_for_index_ptr): Likewise.
	(gimple_omp_for_set_index): Likewise.
	(gimple_omp_for_initial): Likewise.
	(gimple_omp_for_initial_ptr): Likewise.
	(gimple_omp_for_set_initial): Likewise.
	(gimple_omp_for_final): Likewise.
	(gimple_omp_for_final_ptr): Likewise.
	(gimple_omp_for_set_final): Likewise.
	(gimple_omp_for_incr): Likewise.
	(gimple_omp_for_incr_ptr): Likewise.
	(gimple_omp_for_set_incr): Likewise.
	(gimple_omp_for_pre_body_ptr): Likewise.
	(gimple_omp_for_set_pre_body): Likewise.
	(gimple_omp_parallel_clauses): Likewise.
	(gimple_omp_parallel_clauses_ptr): Likewise.
	(gimple_omp_parallel_set_clauses): Likewise.
	(gimple_omp_parallel_child_fn): Likewise.
	(gimple_omp_parallel_child_fn_ptr): Likewise.
	(gimple_omp_parallel_set_child_fn): Likewise.
	(gimple_omp_parallel_data_arg): Likewise.
	(gimple_omp_parallel_data_arg_ptr): Likewise.
	(gimple_omp_parallel_set_data_arg): Likewise.
	(gimple_omp_task_clauses): Likewise.
	(gimple_omp_task_clauses_ptr): Likewise.
	(gimple_omp_task_set_clauses): Likewise.
	(gimple_omp_task_child_fn): Likewise.
	(gimple_omp_task_child_fn_ptr): Likewise.
	(gimple_omp_task_set_child_fn): Likewise.
	(gimple_omp_task_data_arg): Likewise.
	(gimple_omp_task_data_arg_ptr): Likewise.
	(gimple_omp_task_set_data_arg): Likewise.
	(gimple_omp_taskreg_clauses): Likewise.
	(gimple_omp_taskreg_clauses_ptr): Likewise.
	(gimple_omp_taskreg_set_clauses): Likewise.
	(gimple_omp_taskreg_child_fn): Likewise.
	(gimple_omp_taskreg_child_fn_ptr): Likewise.
	(gimple_omp_taskreg_set_child_fn): Likewise.
	(gimple_omp_taskreg_data_arg): Likewise.
	(gimple_omp_taskreg_data_arg_ptr): Likewise.
	(gimple_omp_taskreg_set_data_arg): Likewise.
	(gimple_omp_task_copy_fn): Likewise.
	(gimple_omp_task_copy_fn_ptr): Likewise.
	(gimple_omp_task_set_copy_fn): Likewise.
	(gimple_omp_task_arg_size): Likewise.
	(gimple_omp_task_arg_size_ptr): Likewise.
	(gimple_omp_task_set_arg_size): Likewise.
	(gimple_omp_task_arg_align): Likewise.
	(gimple_omp_task_arg_align_ptr): Likewise.
	(gimple_omp_task_set_arg_align): Likewise.
	(gimple_omp_single_clauses): Likewise.
	(gimple_omp_single_clauses_ptr): Likewise.
	(gimple_omp_single_set_clauses): Likewise.
	(gimple_omp_target_clauses): Likewise.
	(gimple_omp_target_clauses_ptr): Likewise.
	(gimple_omp_target_set_clauses): Likewise.
	(gimple_omp_target_child_fn): Likewise.
	(gimple_omp_target_child_fn_ptr): Likewise.
	(gimple_omp_target_set_child_fn): Likewise.
	(gimple_omp_target_data_arg): Likewise.
	(gimple_omp_target_data_arg_ptr): Likewise.
	(gimple_omp_target_set_data_arg): Likewise.
	(gimple_omp_teams_clauses): Likewise.
	(gimple_omp_teams_clauses_ptr): Likewise.
	(gimple_omp_teams_set_clauses): Likewise.
	(gimple_omp_sections_clauses): Likewise.
	(gimple_omp_sections_clauses_ptr): Likewise.
	(gimple_omp_sections_set_clauses): Likewise.
	(gimple_omp_sections_control): Likewise.
	(gimple_omp_sections_control_ptr): Likewise.
	(gimple_omp_sections_set_control): Likewise.
	(gimple_omp_for_set_cond): Likewise.
	(gimple_omp_for_cond): Likewise.
	(gimple_omp_atomic_store_set_val): Likewise.
	(gimple_omp_atomic_store_val): Likewise.
	(gimple_omp_atomic_store_val_ptr): Likewise.
	(gimple_omp_atomic_load_set_lhs): Likewise.
	(gimple_omp_atomic_load_lhs): Likewise.
	(gimple_omp_atomic_load_lhs_ptr): Likewise.
	(gimple_omp_atomic_load_set_rhs): Likewise.
	(gimple_omp_atomic_load_rhs): Likewise.
	(gimple_omp_atomic_load_rhs_ptr): Likewise.
	(gimple_omp_continue_control_def): Likewise.
	(gimple_omp_continue_control_def_ptr): Likewise.
	(gimple_omp_continue_set_control_def): Likewise.
	(gimple_omp_continue_control_use): Likewise.
	(gimple_omp_continue_control_use_ptr): Likewise.
	(gimple_omp_continue_set_control_use): Likewise.
	(gimple_transaction_body_ptr): Likewise.
	(gimple_transaction_label): Likewise.
	(gimple_transaction_label_ptr): Likewise.
	(gimple_transaction_set_body): Likewise.
	(gimple_transaction_set_label): Likewise.

	* ipa-devirt.c (build_type_inheritance_graph): Likewise.
	* ipa-inline-analysis.c (inline_write_summary): Likewise.
	* ipa-ref.c (ipa_record_reference): Likewise.
	* ipa-reference.c (analyze_function): Likewise.
	(ipa_reference_write_optimization_summary): Likewise.
	* ipa.c (symtab_remove_unreachable_nodes): Likewise.
	(address_taken_from_non_vtable_p): Likewise.
	(comdat_can_be_unshared_p_1): Likewise.
	* lto-cgraph.c (lto_output_ref): Likewise.
	(add_references): Likewise.
	(compute_ltrans_boundary): Likewise.
	(output_symtab): Likewise.
	(input_ref): Likewise.
	(input_cgraph_1): Likewise.
	(output_cgraph_opt_summary): Likewise.
	* lto-streamer-out.c (lto_output): Likewise.
	(output_symbol_p): Likewise.
	* lto-streamer.h (lsei_next_function_in_partition): Likewise.
	(lsei_start_function_in_partition): Likewise.
	(lsei_next_variable_in_partition): Likewise.
	(lsei_start_variable_in_partition): Likewise.
	* symtab.c (insert_to_assembler_name_hash): Likewise.
	(unlink_from_assembler_name_hash): Likewise.
	(symtab_unregister_node): Likewise.
	(symtab_remove_node): Likewise.
	(dump_symtab_node): Likewise.
	(verify_symtab_base): Likewise.
	(verify_symtab_node): Likewise.
	(symtab_make_decl_local): Likewise.
	(symtab_alias_ultimate_target): Likewise.
	(symtab_resolve_alias): Likewise.
	(symtab_get_symbol_partitioning_class): Likewise.
	* tree-phinodes.c (allocate_phi_node): Likewise.
	(reserve_phi_args_for_new_edge): Likewise.
	(remove_phi_args): Likewise.
	* varpool.c (varpool_node_for_asm): Likewise.
	(varpool_remove_unreferenced_decls): Likewise.

gcc/lto/
	* lto-partition.c (add_references_to_partition): Update for
	removal of implicit pointer from the is-a.h API.
	(add_symbol_to_partition_1): Likewise.
	(contained_in_symbol): Likewise.
	(undo_partition): Likewise.
	(lto_balanced_map): Likewise.
	(promote_symbol): Likewise.
	* lto-symtab.c (lto_symtab_merge_symbols_1): Likewise.
	(lto_symtab_merge_symbols): Likewise.
	* lto.c (lto_wpa_write_files): Likewise.

From-SVN: r209719