internal/testprotos: hide all public testprotos

The encoding/testprotos and reflect/protoregistry/testprotos are
accessible by other modules. Move them under internal/testprotos
to dissuade programmers who are too lazy to use their own test protos
when they need one.

Change-Id: I3dbfbce74e68ef033ec252bed076861cb47dd21e
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/214341
Reviewed-by: Damien Neil <dneil@google.com>
diff --git a/internal/testprotos/registry/test.pb.go b/internal/testprotos/registry/test.pb.go
new file mode 100644
index 0000000..5e4ad66
--- /dev/null
+++ b/internal/testprotos/registry/test.pb.go
@@ -0,0 +1,581 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Different proto type definitions for testing the Types registry.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: registry/test.proto
+
+package registry
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoiface "google.golang.org/protobuf/runtime/protoiface"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+type Enum1 int32
+
+const (
+	Enum1_ONE Enum1 = 1
+)
+
+// Enum value maps for Enum1.
+var (
+	Enum1_name = map[int32]string{
+		1: "ONE",
+	}
+	Enum1_value = map[string]int32{
+		"ONE": 1,
+	}
+)
+
+func (x Enum1) Enum() *Enum1 {
+	p := new(Enum1)
+	*p = x
+	return p
+}
+
+func (x Enum1) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum1) Descriptor() protoreflect.EnumDescriptor {
+	return file_registry_test_proto_enumTypes[0].Descriptor()
+}
+
+func (Enum1) Type() protoreflect.EnumType {
+	return &file_registry_test_proto_enumTypes[0]
+}
+
+func (x Enum1) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enum1) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enum1(num)
+	return nil
+}
+
+// Deprecated: Use Enum1.Descriptor instead.
+func (Enum1) EnumDescriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{0}
+}
+
+type Enum2 int32
+
+const (
+	Enum2_UNO Enum2 = 1
+)
+
+// Enum value maps for Enum2.
+var (
+	Enum2_name = map[int32]string{
+		1: "UNO",
+	}
+	Enum2_value = map[string]int32{
+		"UNO": 1,
+	}
+)
+
+func (x Enum2) Enum() *Enum2 {
+	p := new(Enum2)
+	*p = x
+	return p
+}
+
+func (x Enum2) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum2) Descriptor() protoreflect.EnumDescriptor {
+	return file_registry_test_proto_enumTypes[1].Descriptor()
+}
+
+func (Enum2) Type() protoreflect.EnumType {
+	return &file_registry_test_proto_enumTypes[1]
+}
+
+func (x Enum2) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enum2) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enum2(num)
+	return nil
+}
+
+// Deprecated: Use Enum2.Descriptor instead.
+func (Enum2) EnumDescriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{1}
+}
+
+type Enum3 int32
+
+const (
+	Enum3_YI Enum3 = 1
+)
+
+// Enum value maps for Enum3.
+var (
+	Enum3_name = map[int32]string{
+		1: "YI",
+	}
+	Enum3_value = map[string]int32{
+		"YI": 1,
+	}
+)
+
+func (x Enum3) Enum() *Enum3 {
+	p := new(Enum3)
+	*p = x
+	return p
+}
+
+func (x Enum3) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum3) Descriptor() protoreflect.EnumDescriptor {
+	return file_registry_test_proto_enumTypes[2].Descriptor()
+}
+
+func (Enum3) Type() protoreflect.EnumType {
+	return &file_registry_test_proto_enumTypes[2]
+}
+
+func (x Enum3) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enum3) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enum3(num)
+	return nil
+}
+
+// Deprecated: Use Enum3.Descriptor instead.
+func (Enum3) EnumDescriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{2}
+}
+
+type Message1 struct {
+	state           protoimpl.MessageState
+	sizeCache       protoimpl.SizeCache
+	unknownFields   protoimpl.UnknownFields
+	extensionFields protoimpl.ExtensionFields
+}
+
+func (x *Message1) Reset() {
+	*x = Message1{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message1) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message1) ProtoMessage() {}
+
+func (x *Message1) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Message1.ProtoReflect.Descriptor instead.
+func (*Message1) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{0}
+}
+
+var extRange_Message1 = []protoiface.ExtensionRangeV1{
+	{Start: 10, End: 536870911},
+}
+
+// Deprecated: Use Message1.ProtoReflect.Descriptor.ExtensionRanges instead.
+func (*Message1) ExtensionRangeArray() []protoiface.ExtensionRangeV1 {
+	return extRange_Message1
+}
+
+type Message2 struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *Message2) Reset() {
+	*x = Message2{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message2) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message2) ProtoMessage() {}
+
+func (x *Message2) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Message2.ProtoReflect.Descriptor instead.
+func (*Message2) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{1}
+}
+
+type Message3 struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *Message3) Reset() {
+	*x = Message3{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message3) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message3) ProtoMessage() {}
+
+func (x *Message3) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Message3.ProtoReflect.Descriptor instead.
+func (*Message3) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{2}
+}
+
+type Message4 struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	BoolField *bool `protobuf:"varint,30,opt,name=bool_field,json=boolField" json:"bool_field,omitempty"`
+}
+
+func (x *Message4) Reset() {
+	*x = Message4{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message4) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message4) ProtoMessage() {}
+
+func (x *Message4) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Message4.ProtoReflect.Descriptor instead.
+func (*Message4) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *Message4) GetBoolField() bool {
+	if x != nil && x.BoolField != nil {
+		return *x.BoolField
+	}
+	return false
+}
+
+var file_registry_test_proto_extTypes = []protoimpl.ExtensionInfo{
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*string)(nil),
+		Field:         11,
+		Name:          "testprotos.string_field",
+		Tag:           "bytes,11,opt,name=string_field",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Enum1)(nil),
+		Field:         12,
+		Name:          "testprotos.enum_field",
+		Tag:           "varint,12,opt,name=enum_field,enum=testprotos.Enum1",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Message2)(nil),
+		Field:         13,
+		Name:          "testprotos.message_field",
+		Tag:           "bytes,13,opt,name=message_field",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Message2)(nil),
+		Field:         21,
+		Name:          "testprotos.Message4.message_field",
+		Tag:           "bytes,21,opt,name=message_field",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Enum1)(nil),
+		Field:         22,
+		Name:          "testprotos.Message4.enum_field",
+		Tag:           "varint,22,opt,name=enum_field,enum=testprotos.Enum1",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*string)(nil),
+		Field:         23,
+		Name:          "testprotos.Message4.string_field",
+		Tag:           "bytes,23,opt,name=string_field",
+		Filename:      "registry/test.proto",
+	},
+}
+
+// Extension fields to Message1.
+var (
+	// optional string string_field = 11;
+	E_StringField = &file_registry_test_proto_extTypes[0]
+	// optional testprotos.Enum1 enum_field = 12;
+	E_EnumField = &file_registry_test_proto_extTypes[1]
+	// optional testprotos.Message2 message_field = 13;
+	E_MessageField = &file_registry_test_proto_extTypes[2]
+	// optional testprotos.Message2 message_field = 21;
+	E_Message4_MessageField = &file_registry_test_proto_extTypes[3]
+	// optional testprotos.Enum1 enum_field = 22;
+	E_Message4_EnumField = &file_registry_test_proto_extTypes[4]
+	// optional string string_field = 23;
+	E_Message4_StringField = &file_registry_test_proto_extTypes[5]
+)
+
+var File_registry_test_proto protoreflect.FileDescriptor
+
+var file_registry_test_proto_rawDesc = []byte{
+	0x0a, 0x13, 0x72, 0x65, 0x67, 0x69, 0x73, 0x74, 0x72, 0x79, 0x2f, 0x74, 0x65, 0x73, 0x74, 0x2e,
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+}
+
+var (
+	file_registry_test_proto_rawDescOnce sync.Once
+	file_registry_test_proto_rawDescData = file_registry_test_proto_rawDesc
+)
+
+func file_registry_test_proto_rawDescGZIP() []byte {
+	file_registry_test_proto_rawDescOnce.Do(func() {
+		file_registry_test_proto_rawDescData = protoimpl.X.CompressGZIP(file_registry_test_proto_rawDescData)
+	})
+	return file_registry_test_proto_rawDescData
+}
+
+var file_registry_test_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
+var file_registry_test_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_registry_test_proto_goTypes = []interface{}{
+	(Enum1)(0),       // 0: testprotos.Enum1
+	(Enum2)(0),       // 1: testprotos.Enum2
+	(Enum3)(0),       // 2: testprotos.Enum3
+	(*Message1)(nil), // 3: testprotos.Message1
+	(*Message2)(nil), // 4: testprotos.Message2
+	(*Message3)(nil), // 5: testprotos.Message3
+	(*Message4)(nil), // 6: testprotos.Message4
+}
+var file_registry_test_proto_depIdxs = []int32{
+	3,  // 0: testprotos.string_field:extendee -> testprotos.Message1
+	3,  // 1: testprotos.enum_field:extendee -> testprotos.Message1
+	3,  // 2: testprotos.message_field:extendee -> testprotos.Message1
+	3,  // 3: testprotos.Message4.message_field:extendee -> testprotos.Message1
+	3,  // 4: testprotos.Message4.enum_field:extendee -> testprotos.Message1
+	3,  // 5: testprotos.Message4.string_field:extendee -> testprotos.Message1
+	0,  // 6: testprotos.enum_field:type_name -> testprotos.Enum1
+	4,  // 7: testprotos.message_field:type_name -> testprotos.Message2
+	4,  // 8: testprotos.Message4.message_field:type_name -> testprotos.Message2
+	0,  // 9: testprotos.Message4.enum_field:type_name -> testprotos.Enum1
+	10, // [10:10] is the sub-list for method output_type
+	10, // [10:10] is the sub-list for method input_type
+	6,  // [6:10] is the sub-list for extension type_name
+	0,  // [0:6] is the sub-list for extension extendee
+	0,  // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_registry_test_proto_init() }
+func file_registry_test_proto_init() {
+	if File_registry_test_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_registry_test_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message1); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			case 3:
+				return &v.extensionFields
+			default:
+				return nil
+			}
+		}
+		file_registry_test_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message2); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_registry_test_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message3); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_registry_test_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message4); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_registry_test_proto_rawDesc,
+			NumEnums:      3,
+			NumMessages:   4,
+			NumExtensions: 6,
+			NumServices:   0,
+		},
+		GoTypes:           file_registry_test_proto_goTypes,
+		DependencyIndexes: file_registry_test_proto_depIdxs,
+		EnumInfos:         file_registry_test_proto_enumTypes,
+		MessageInfos:      file_registry_test_proto_msgTypes,
+		ExtensionInfos:    file_registry_test_proto_extTypes,
+	}.Build()
+	File_registry_test_proto = out.File
+	file_registry_test_proto_rawDesc = nil
+	file_registry_test_proto_goTypes = nil
+	file_registry_test_proto_depIdxs = nil
+}