Fix memleak on ReflectionFunction and ReflectionGenerator classes when calling __construct after instantiation

Author: felipensp

ext/reflection/php_reflection.c

@@ -1534,6 +1534,11 @@ ZEND_METHOD(reflection_function, __construct)
 		}
 	}
 
+	if (intern->ptr) {
+		zval_ptr_dtor(&intern->obj);
+		zval_ptr_dtor(reflection_prop_name(object));
+	}
+
 	ZVAL_STR_COPY(reflection_prop_name(object), fptr->common.function_name);
 	intern->ptr = fptr;
 	intern->ref_type = REF_TYPE_FUNCTION;
@@ -2073,6 +2078,10 @@ ZEND_METHOD(reflection_generator, __construct)
 		return;
 	}
 
+	if (intern->ce) {
+		zval_ptr_dtor(&intern->obj);
+	}
+
 	intern->ref_type = REF_TYPE_GENERATOR;
 	Z_ADDREF_P(generator);
 	ZVAL_OBJ(&intern->obj, Z_OBJ_P(generator));