`TJSONStreamWriter`
pt		PushElCount
pt		PopElCount
pt		IncElCount
pt		ElCount
pt		WriteString
		create
		WriteValue
		StartProperty
		EndProperty
		StartArray
		EndArray
		NextElement
		StartObject
		EndObject
		Flush

`TAbstractJSONWriter`
		WriteValue
		WriteProperty
		StartProperty
		EndProperty
		StartArray
		EndArray
		NextElement
		StartObject
		EndObject
		Flush