Add test for & and interfaces

Author: iluuu1994

Zend/tests/pattern_matching/is/and.phpt

@@ -3,12 +3,19 @@ And pattern
 --FILE--
 <?php
 
+interface A {}
+interface B {}
+interface C {}
+class Foo implements A, B {}
+
 var_dump(1 is (int&1));
 var_dump(2 is (int&(1|2)));
 var_dump(3 is (float&1));
 var_dump(4 is (int&float));
 var_dump([] is ([]&[...]));
 var_dump('foo' is (string&'bar'));
+var_dump(new Foo() is (A&B));
+var_dump(new Foo() is (A&C));
 
 ?>
 --EXPECT--
@@ -18,3 +25,5 @@ bool(false)
 bool(false)
 bool(true)
 bool(false)
+bool(true)
+bool(false)