Rename Empty to GPBEmpty in php generated file.

In php, class name cannot be "Empty". Modified code generator to (#2375) generate GPBEmpty instead (for google.protobuf.Empty only). Also change
runtime code to work with the new generated code accordingly.

1 files changed, 13 insertions, 0 deletions

diff --git a/php/tests/well_known_test.php b/php/tests/well_known_test.php
new file mode 100644
index 00000000..30715ba9
--- /dev/null
+++ b/php/tests/well_known_test.php
@@ -0,0 +1,13 @@
+<?php
+
+require_once("google/protobuf/empty.pb.php");
+
+use Google\Protobuf\GPBEmpty;
+
+class WellKnownTest extends PHPUnit_Framework_TestCase {
+
+    public function testNone() {
+      $msg = new GPBEmpty();
+    }
+
+}