PHP namespaces for nested messages and enums (#4536)

* uses namespaces for nested messages and enums

* fixes namespaces for PHP dist

* fixes namespace for Descriptors, adds Cardinality and Kind

* fixes nested namespaces for reserved words and adds tests

* adds tests and generator fix for php class prefixes

* fixes escaping of protobuf packages, enum comments, misc others

* nice refactor of generated code

* adds class files for backwards compatibility

* simplifies code with templates

* adds compatibility files to makefile

* cleanup of generator and fixes nested namespace bug

* regenerates proto types

* remove internal BC classes

* adds deprecated warning, adds methods back

* simplifies if statement

* fixes dist files

* addresses review comments

* adds back TYPE_URL_PREFIX constant

* adds @deprecated to old nested class files

* skips tests which require a separate process when protobuf.so is enabled

* Adds tests for legacy nested classes that do not require separate processes to test

* uses legacy names for GPBUtil message check

* adds block for IDE @deprecated message

* Namespace for nested message/enum in c extension

* Remove unused code

1 files changed, 24 insertions, 2 deletions

diff --git a/php/src/Google/Protobuf/Method.php b/php/src/Google/Protobuf/Method.php
index f55cb764..8e803506 100644
--- a/php/src/Google/Protobuf/Method.php
+++ b/php/src/Google/Protobuf/Method.php
@@ -58,9 +58,31 @@ class Method extends \Google\Protobuf\Internal\Message
      */
     private $syntax = 0;
 
-    public function __construct() {
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           The simple name of this method.
+     *     @type string $request_type_url
+     *           A URL of the input message type.
+     *     @type bool $request_streaming
+     *           If true, the request is streamed.
+     *     @type string $response_type_url
+     *           The URL of the output message type.
+     *     @type bool $response_streaming
+     *           If true, the response is streamed.
+     *     @type \Google\Protobuf\Option[]|\Google\Protobuf\Internal\RepeatedField $options
+     *           Any metadata attached to the method.
+     *     @type int $syntax
+     *           The source syntax of this method.
+     * }
+     */
+    public function __construct($data = NULL) {
         \GPBMetadata\Google\Protobuf\Api::initOnce();
-        parent::__construct();
+        parent::__construct($data);
     }
 
     /**