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, 0 insertions, 107 deletions

diff --git a/php/src/Google/Protobuf/Internal/UninterpretedOption_NamePart.php b/php/src/Google/Protobuf/Internal/UninterpretedOption_NamePart.php
deleted file mode 100644
index d4369fda..00000000
--- a/php/src/Google/Protobuf/Internal/UninterpretedOption_NamePart.php
+++ /dev/null
@@ -1,107 +0,0 @@
-<?php
-# Generated by the protocol buffer compiler.  DO NOT EDIT!
-# source: google/protobuf/descriptor.proto
-
-namespace Google\Protobuf\Internal;
-
-use Google\Protobuf\Internal\GPBType;
-use Google\Protobuf\Internal\GPBWire;
-use Google\Protobuf\Internal\RepeatedField;
-use Google\Protobuf\Internal\InputStream;
-use Google\Protobuf\Internal\GPBUtil;
-
-/**
- * The name of the uninterpreted option.  Each string represents a segment in
- * a dot-separated name.  is_extension is true iff a segment represents an
- * extension (denoted with parentheses in options specs in .proto files).
- * E.g.,{ ["foo", false], ["bar.baz", true], ["qux", false] } represents
- * "foo.(bar.baz).qux".
- *
- * Generated from protobuf message <code>google.protobuf.UninterpretedOption.NamePart</code>
- */
-class UninterpretedOption_NamePart extends \Google\Protobuf\Internal\Message
-{
-    /**
-     * Generated from protobuf field <code>required string name_part = 1;</code>
-     */
-    private $name_part = '';
-    private $has_name_part = false;
-    /**
-     * Generated from protobuf field <code>required bool is_extension = 2;</code>
-     */
-    private $is_extension = false;
-    private $has_is_extension = false;
-
-    /**
-     * Constructor.
-     *
-     * @param array $data {
-     *     Optional. Data for populating the Message object.
-     *
-     *     @type string $name_part
-     *     @type bool $is_extension
-     * }
-     */
-    public function __construct($data = NULL) {
-        \GPBMetadata\Google\Protobuf\Internal\Descriptor::initOnce();
-        parent::__construct($data);
-    }
-
-    /**
-     * Generated from protobuf field <code>required string name_part = 1;</code>
-     * @return string
-     */
-    public function getNamePart()
-    {
-        return $this->name_part;
-    }
-
-    /**
-     * Generated from protobuf field <code>required string name_part = 1;</code>
-     * @param string $var
-     * @return $this
-     */
-    public function setNamePart($var)
-    {
-        GPBUtil::checkString($var, True);
-        $this->name_part = $var;
-        $this->has_name_part = true;
-
-        return $this;
-    }
-
-    public function hasNamePart()
-    {
-        return $this->has_name_part;
-    }
-
-    /**
-     * Generated from protobuf field <code>required bool is_extension = 2;</code>
-     * @return bool
-     */
-    public function getIsExtension()
-    {
-        return $this->is_extension;
-    }
-
-    /**
-     * Generated from protobuf field <code>required bool is_extension = 2;</code>
-     * @param bool $var
-     * @return $this
-     */
-    public function setIsExtension($var)
-    {
-        GPBUtil::checkBool($var);
-        $this->is_extension = $var;
-        $this->has_is_extension = true;
-
-        return $this;
-    }
-
-    public function hasIsExtension()
-    {
-        return $this->has_is_extension;
-    }
-
-}
-