gen_stub: Add some escaped strings in the zend_test stub

Author: NattyNarwhal

ext/zend_test/test.stub.php

@@ -9,6 +9,8 @@
 namespace {
     require "Zend/zend_attributes.stub.php";
 
+
+
     /**
      * @var int
      * @deprecated
@@ -57,6 +59,11 @@ class _ZendTestClass implements _ZendTestInterface {
         public static $_StaticProp;
         public static int $staticIntProp = 123;
 
+        /* If there's a problem with escapes in quotes in generated headers,
+	 * the generated header won't compile. */
+        public static string $doubleQuoteEscaped = "BEGIN \n\r\t\v\e\f\\\$\"\101\x41\u{41} END";
+        public static string $singleQuoteEscaped = 'BEGIN \n\r\t\v\e\f\\\$\"\101\x41\u{41} END';
+
         public int $intProp = 123;
         public ?stdClass $classProp = null;
         public stdClass|Iterator|null $classUnionProp = null;