gcc: use _P() defines from tree.h

gcc: use _P() defines from tree.h

gcc/ChangeLog:

	* alias.cc (ref_all_alias_ptr_type_p): Use _P() defines from tree.h.
	* attribs.cc (diag_attr_exclusions): Ditto.
	(decl_attributes): Ditto.
	(build_type_attribute_qual_variant): Ditto.
	* builtins.cc (fold_builtin_carg): Ditto.
	(fold_builtin_next_arg): Ditto.
	(do_mpc_arg2): Ditto.
	* cfgexpand.cc (expand_return): Ditto.
	* cgraph.h (decl_in_symtab_p): Ditto.
	(symtab_node::get_create): Ditto.
	* dwarf2out.cc (base_type_die): Ditto.
	(implicit_ptr_descriptor): Ditto.
	(gen_array_type_die): Ditto.
	(gen_type_die_with_usage): Ditto.
	(optimize_location_into_implicit_ptr): Ditto.
	* expr.cc (do_store_flag): Ditto.
	* fold-const.cc (negate_expr_p): Ditto.
	(fold_negate_expr_1): Ditto.
	(fold_convert_const): Ditto.
	(fold_convert_loc): Ditto.
	(constant_boolean_node): Ditto.
	(fold_binary_op_with_conditional_arg): Ditto.
	(build_fold_addr_expr_with_type_loc): Ditto.
	(fold_comparison): Ditto.
	(fold_checksum_tree): Ditto.
	(tree_unary_nonnegative_warnv_p): Ditto.
	(integer_valued_real_unary_p): Ditto.
	(fold_read_from_constant_string): Ditto.
	* gcc-rich-location.cc (maybe_range_label_for_tree_type_mismatch::get_text): Ditto.
	* gimple-expr.cc (useless_type_conversion_p): Ditto.
	(is_gimple_reg): Ditto.
	(is_gimple_asm_val): Ditto.
	(mark_addressable): Ditto.
	* gimple-expr.h (is_gimple_variable): Ditto.
	(virtual_operand_p): Ditto.
	* gimple-ssa-warn-access.cc (pass_waccess::check_dangling_stores): Ditto.
	* gimplify.cc (gimplify_bind_expr): Ditto.
	(gimplify_return_expr): Ditto.
	(gimple_add_padding_init_for_auto_var): Ditto.
	(gimplify_addr_expr): Ditto.
	(omp_add_variable): Ditto.
	(omp_notice_variable): Ditto.
	(omp_get_base_pointer): Ditto.
	(omp_strip_components_and_deref): Ditto.
	(omp_strip_indirections): Ditto.
	(omp_accumulate_sibling_list): Ditto.
	(omp_build_struct_sibling_lists): Ditto.
	(gimplify_adjust_omp_clauses_1): Ditto.
	(gimplify_adjust_omp_clauses): Ditto.
	(gimplify_omp_for): Ditto.
	(goa_lhs_expr_p): Ditto.
	(gimplify_one_sizepos): Ditto.
	* graphite-scop-detection.cc (scop_detection::graphite_can_represent_scev): Ditto.
	* ipa-devirt.cc (odr_types_equivalent_p): Ditto.
	* ipa-prop.cc (ipa_set_jf_constant): Ditto.
	(propagate_controlled_uses): Ditto.
	* ipa-sra.cc (type_prevails_p): Ditto.
	(scan_expr_access): Ditto.
	* optabs-tree.cc (optab_for_tree_code): Ditto.
	* toplev.cc (wrapup_global_declaration_1): Ditto.
	* trans-mem.cc (transaction_invariant_address_p): Ditto.
	* tree-cfg.cc (verify_types_in_gimple_reference): Ditto.
	(verify_gimple_comparison): Ditto.
	(verify_gimple_assign_binary): Ditto.
	(verify_gimple_assign_single): Ditto.
	* tree-complex.cc (get_component_ssa_name): Ditto.
	* tree-emutls.cc (lower_emutls_2): Ditto.
	* tree-inline.cc (copy_tree_body_r): Ditto.
	(estimate_move_cost): Ditto.
	(copy_decl_for_dup_finish): Ditto.
	* tree-nested.cc (convert_nonlocal_omp_clauses): Ditto.
	(note_nonlocal_vla_type): Ditto.
	(convert_local_omp_clauses): Ditto.
	(remap_vla_decls): Ditto.
	(fixup_vla_decls): Ditto.
	* tree-parloops.cc (loop_has_vector_phi_nodes): Ditto.
	* tree-pretty-print.cc (print_declaration): Ditto.
	(print_call_name): Ditto.
	* tree-sra.cc (compare_access_positions): Ditto.
	* tree-ssa-alias.cc (compare_type_sizes): Ditto.
	* tree-ssa-ccp.cc (get_default_value): Ditto.
	* tree-ssa-coalesce.cc (populate_coalesce_list_for_outofssa): Ditto.
	* tree-ssa-dom.cc (reduce_vector_comparison_to_scalar_comparison): Ditto.
	* tree-ssa-forwprop.cc (can_propagate_from): Ditto.
	* tree-ssa-propagate.cc (may_propagate_copy): Ditto.
	* tree-ssa-sccvn.cc (fully_constant_vn_reference_p): Ditto.
	* tree-ssa-sink.cc (statement_sink_location): Ditto.
	* tree-ssa-structalias.cc (type_must_have_pointers): Ditto.
	* tree-ssa-ter.cc (find_replaceable_in_bb): Ditto.
	* tree-ssa-uninit.cc (warn_uninit): Ditto.
	* tree-ssa.cc (maybe_rewrite_mem_ref_base): Ditto.
	(non_rewritable_mem_ref_base): Ditto.
	* tree-streamer-in.cc (lto_input_ts_type_non_common_tree_pointers): Ditto.
	* tree-streamer-out.cc (write_ts_type_non_common_tree_pointers): Ditto.
	* tree-vect-generic.cc (do_binop): Ditto.
	(do_cond): Ditto.
	* tree-vect-stmts.cc (vect_init_vector): Ditto.
	* tree-vector-builder.h (tree_vector_builder::note_representative): Ditto.
	* tree.cc (sign_mask_for): Ditto.
	(verify_type_variant): Ditto.
	(gimple_canonical_types_compatible_p): Ditto.
	(verify_type): Ditto.
	* ubsan.cc (get_ubsan_type_info_for_type): Ditto.
	* var-tracking.cc (prepare_call_arguments): Ditto.
	(vt_add_function_parameters): Ditto.
	* varasm.cc (decode_addr_const): Ditto.