Use legacy name in php runtime (#4741)v3.6.0.1

* Use legacy name in php runtime

Old generated code cannot work with new runtime, because the new runtime
assumes new class name for nested message. For details see #4738.

* Remove unused method

1 files changed, 14 insertions, 0 deletions

diff --git a/php/src/Google/Protobuf/Internal/Descriptor.php b/php/src/Google/Protobuf/Internal/Descriptor.php
index ee3a8bde..21ac5de3 100644
--- a/php/src/Google/Protobuf/Internal/Descriptor.php
+++ b/php/src/Google/Protobuf/Internal/Descriptor.php
@@ -44,6 +44,7 @@ class Descriptor
     private $nested_type = [];
     private $enum_type = [];
     private $klass;
+    private $legacy_klass;
     private $options;
     private $oneof_decl = [];
 
@@ -151,6 +152,16 @@ class Descriptor
         return $this->klass;
     }
 
+    public function setLegacyClass($klass)
+    {
+        $this->legacy_klass = $klass;
+    }
+
+    public function getLegacyClass()
+    {
+        return $this->legacy_klass;
+    }
+
     public function setOptions($options)
     {
         $this->options = $options;
@@ -167,16 +178,19 @@ class Descriptor
 
         $message_name_without_package  = "";
         $classname = "";
+        $legacy_classname = "";
         $fullname = "";
         GPBUtil::getFullClassName(
             $proto,
             $containing,
             $file_proto,
             $message_name_without_package,
+            $legacy_classname,
             $classname,
             $fullname);
         $desc->setFullName($fullname);
         $desc->setClass($classname);
+        $desc->setLegacyClass($legacy_classname);
         $desc->setOptions($proto->getOptions());
 
         foreach ($proto->getField() as $field_proto) {