Remove XFAIL from tests for 'bug' 48770

Bug 48770 was opened due to conflicting expectations about the behavior of:

    call_user_func_array(array($this, 'parent::methodName'), array($arg1,$arg2))

The one reporting the 'bug' seemed to think that since the method name was prefixed with
`parent::`, it should call the method in the superclass of the *class where this code appears*.
However, `$this` might be an instance of a subclass. If so, then it is quite reasonable that
`call_user_func_array` will call the method as defined in the superclass of *the receiver*.

So the 'bug' is not really a bug. Therefore, there is no need for an XFAIL in the tests. They
should just pass.

Amend tests to reflect the actual expected behavior of `call_user_func_array`, not what the
person who reported bug 48770 thought it should be.

Closes GH-5386.

Author: alexdowad

Zend/tests/bug48770.phpt

@@ -1,53 +1,34 @@
 --TEST--
 Bug #48770 (call_user_func_array() fails to call parent from inheriting class)
---XFAIL--
-See Bug #48770
 --FILE--
 <?php
 
 class A {
-    public function func($str) {
-        var_dump(__METHOD__ .': '. $str);
-    }
-    private function func2($str) {
-        var_dump(__METHOD__ .': '. $str);
-    }
-    protected function func3($str) {
-        var_dump(__METHOD__ .': '. $str);
-    }
-    private function func22($str) {
-        var_dump(__METHOD__ .': '. $str);
+    public function func($arg) {
+        echo "A::func called\n";
     }
 }
 
 class B extends A {
-    public function func($str) {
-        static $avoid_crash = 0;
-
-        if ($avoid_crash++ == 1) {
-            print "This method shouldn't be called when using parent::func!\n";
-            return;
-        }
-
-        call_user_func_array(array($this, 'parent::func'), array($str));
-    }
-    private function func2($str) {
-        var_dump(__METHOD__ .': '. $str);
+    public function func($arg) {
+        echo "B::func called\n";
     }
-    protected function func3($str) {
-        var_dump(__METHOD__ .': '. $str);
+
+    public function callFuncInParent($arg) {
+        call_user_func_array(array($this, 'parent::func'), array($arg));
     }
 }
 
 class C extends B {
-    public function func($str) {
+    public function func($arg) {
+        echo "C::func called\n";
         parent::func($str);
     }
 }
 
 $c = new C;
-$c->func('This should work!');
+$c->callFuncInParent('Which function will be called??');
 
 ?>
 --EXPECT--
-string(26) "A::func: This should work!"
+B::func called

Zend/tests/bug48770_2.phpt

@@ -1,7 +1,5 @@
 --TEST--
 Bug #48770 (call_user_func_array() fails to call parent from inheriting class)
---XFAIL--
-See Bug #48770
 --FILE--
 <?php
 
@@ -56,7 +54,7 @@ $c->func('This should work!');
 
 ?>
 --EXPECT--
-string(27) "A::func2: This should work!"
-string(27) "A::func3: This should work!"
-call_user_func_array(): Argument #1 ($function) must be a valid callback, cannot access private method A::func22()
-call_user_func_array(): Argument #1 ($function) must be a valid callback, class 'A' does not have a method 'inexistent'
+string(27) "B::func2: This should work!"
+string(27) "B::func3: This should work!"
+call_user_func_array(): Argument #1 ($function) must be a valid callback, cannot access private method B::func22()
+call_user_func_array(): Argument #1 ($function) must be a valid callback, class 'B' does not have a method 'inexistent'

Zend/tests/bug48770_3.phpt

@@ -1,7 +1,5 @@
 --TEST--
 Bug #48770 (call_user_func_array() fails to call parent from inheriting class)
---XFAIL--
-See Bug #48770
 --FILE--
 <?php
 
@@ -15,9 +13,6 @@ class A {
     protected function func3($str) {
         var_dump(__METHOD__ .': '. $str);
     }
-    private function func22($str) {
-        var_dump(__METHOD__ .': '. $str);
-    }
 }
 
 class B extends A {
@@ -52,4 +47,4 @@ $c->func('This should work!');
 --EXPECT--
 string(27) "B::func2: This should work!"
 string(27) "B::func3: This should work!"
-call_user_func_array(): Argument #1 ($function) must be a valid callback, class 'B' does not have a method 'inexistent'
+call_user_func_array(): Argument #1 ($function) must be a valid callback, class 'C' does not have a method 'inexistent'