Fix opcache preload with observers enabled

Signed-off-by: Bob Weinand <bobwei9@hotmail.com>

ext/opcache/ZendAccelerator.c

@@ -35,6 +35,7 @@
 #include "zend_inheritance.h"
 #include "zend_exceptions.h"
 #include "zend_mmap.h"
+#include "zend_observer.h"
 #include "main/php_main.h"
 #include "main/SAPI.h"
 #include "main/php_streams.h"
@@ -4480,6 +4481,7 @@ static int accel_preload(const char *config, bool in_child)
 		script->script.main_op_array.fn_flags |= ZEND_ACC_DONE_PASS_TWO;
 		script->script.main_op_array.last = 1;
 		script->script.main_op_array.last_literal = 1;
+		script->script.main_op_array.T = ZEND_OBSERVER_ENABLED;
 #if ZEND_USE_ABS_CONST_ADDR
 		script->script.main_op_array.literals = (zval*)emalloc(sizeof(zval));
 #else

ext/zend_test/tests/observer_preload.inc

@@ -0,0 +1,13 @@
+<?php
+
+class Foo {
+    public static function test() {
+        return "foo::test";
+    }
+}
+
+if (true) {
+    function foo() {
+        return 'I should be observable';
+    }
+}

ext/zend_test/tests/observer_preload.phpt

@@ -0,0 +1,38 @@
+--TEST--
+Observer: Test with basic preloading
+--EXTENSIONS--
+zend_test
+opcache
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+opcache.optimization_level=-1
+opcache.preload={PWD}/observer_preload.inc
+zend_test.observer.enabled=1
+zend_test.observer.observe_all=1
+zend_test.observer.observe_declaring=1
+zend_test.observer.show_return_value=1
+--FILE--
+<?php
+
+Foo::test();
+foo();
+
+echo 'Done' . PHP_EOL;
+?>
+--EXPECTF--
+<!-- declared class 'foo' -->
+<!-- init '%sobserver_preload.inc' -->
+<file '%sobserver_preload.inc'>
+  <!-- declared function 'foo' -->
+</file '%sobserver_preload.inc'>
+<!-- init '%sobserver_preload.php' -->
+<file '%sobserver_preload.php'>
+  <!-- init Foo::test() -->
+  <Foo::test>
+  </Foo::test:'foo::test'>
+  <!-- init foo() -->
+  <foo>
+  </foo:'I should be observable'>
+Done
+</file '%sobserver_preload.php'>