Add test for cloning TimecopDateTime / Remove some useless codes

Author: hnw

tests/013.phpt

@@ -0,0 +1,21 @@
+--TEST--
+Check for clone TimecopDateTime instance
+--SKIPIF--
+<?php
+extension_loaded('timecop') or die('skip timecop not available');
+$required_class = array("timecopdatetime");
+foreach ($required_class as $class_name) {
+    if (!class_exists($class_name)) {
+        die("skip $class_name class is not available.");
+    }
+}
+--INI--
+date.timezone=America/Los_Angeles
+timecop.func_override=0
+--FILE--
+<?php
+$dt1 = new TimecopDateTime("2012-01-01 12:00:00 GMT");
+$dt2 = clone $dt1;
+var_dump($dt2->format("c"));
+--EXPECT--
+string(25) "2012-01-01T12:00:00+00:00"

timecop.c

@@ -538,7 +538,6 @@ static int update_request_time(long unixtime TSRMLS_DC)
 		MAKE_STD_ZVAL(tmp);
 		ZVAL_LONG(tmp, unixtime);
 		add_assoc_zval(*server_vars, "REQUEST_TIME", tmp);
-		zval_dtor(tmp);
 	}
 
 	return SUCCESS;
@@ -556,7 +555,6 @@ static int restore_request_time(TSRMLS_D)
 		Z_TYPE_PP(server_vars) == IS_ARRAY &&
 		zend_hash_find(Z_ARRVAL_PP(server_vars), "REQUEST_TIME", sizeof("REQUEST_TIME"), (void **) &request_time) == SUCCESS) {
 		add_assoc_zval(*server_vars, "REQUEST_TIME", orig_request_time);
-		zval_dtor(orig_request_time);
 		TIMECOP_G(orig_request_time) = NULL;
 	}
 	return SUCCESS;
@@ -629,8 +627,6 @@ static int fix_datetime_timestamp(zval **datetime_obj, zval *time, zval *timezon
 		}
 	}
 
-	//zend_call_method_with_1_params(NULL, NULL, NULL, "var_dump", NULL, &now);
-
 	zend_call_method_with_0_params(datetime_obj, Z_OBJCE_PP(datetime_obj), NULL, "gettimestamp", &orig_timestamp);
 	if (timezone_obj) {
 		zval *zonename;