Fix system call related date builtin functions

Related issues: #213, #691
 * Fixed 'ecma_date_local_tza' and 'ecma_date_daylight_saving_ta' date builtin helper functions
 * Added syscall of gettimeofday function to get the current system time and timezone.
 * Fixed related regression test files.

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

tests/jerry/date-annexb.js

@@ -1,5 +1,5 @@
-// Copyright 2015 Samsung Electronics Co., Ltd.
-// Copyright 2015 University of Szeged.
+// Copyright 2015-2016 Samsung Electronics Co., Ltd.
+// Copyright 2015-2016 University of Szeged.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -40,8 +40,7 @@ assert (d.getFullYear() === 2004 && d.getMonth() === 1 && d.getDate() === 29);
 d.setYear(2015);
 assert (d.getFullYear() === 2015 && d.getMonth() === 2 && d.getDate() === 1);
 
-d = new Date(2015, 8, 17);
-assert (d.toGMTString() === "Thu, 17 Sep 2015 00:00:00 GMT");
+assert (/Thu, 17 Sep 2015 \d{2}:\d{2}:\d{2} GMT/.test (new Date("2015-09-17").toGMTString()));
 
 d = new Date(NaN);
 assert (d.toGMTString() === "Invalid Date");

tests/jerry/date-construct.js

@@ -1,5 +1,5 @@
-// Copyright 2015 Samsung Electronics Co., Ltd.
-// Copyright 2015 University of Szeged.
+// Copyright 2015-2016 Samsung Electronics Co., Ltd.
+// Copyright 2015-2016 University of Szeged.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -44,7 +44,7 @@ d = new Date(1420070400000);
 assert (d.valueOf() == 1420070400000);
 
 d = new Date(2015,0,1,0,0,0,0);
-assert (d.valueOf() == 1420070400000);
+assert (d.valueOf() - (d.getTimezoneOffset() * 60000) == 1420070400000);
 
 d = new Date(8.64e+15);
 assert (d.valueOf() == 8.64e+15);
@@ -80,6 +80,3 @@ catch (e)
 assert (typeof Date (2015) == "string");
 assert (typeof Date() != typeof (new Date ()));
 assert (Date (Number.NaN) == Date ());
-
-// Fixme: remove this case when Date() gives the current time.
-assert (Date (2015,1,2) == "Thu Jan 01 1970 00:00:00 GMT+0000");

tests/jerry/date-tostring.js

@@ -1,5 +1,5 @@
-// Copyright 2015 Samsung Electronics Co., Ltd.
-// Copyright 2015 University of Szeged.
+// Copyright 2015-2016 Samsung Electronics Co., Ltd.
+// Copyright 2015-2016 University of Szeged.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@ assert (new Date (2015, 7, 1, 0, Infinity, 0) == "Invalid Date");
 assert (new Date (NaN, 1, 1, 0, 0, 0) == "Invalid Date");
 assert (new Date (2015, NaN, 1, 0, 0, 0) == "Invalid Date");
 assert (new Date (2015, 7, 1, 0, NaN, 0) == "Invalid Date");
-assert (new Date ("2015-02-13") == "Fri Feb 13 2015 00:00:00 GMT+0000");
-assert (new Date ("2015-07-08T11:29:05.023") == "Wed Jul 08 2015 11:29:05 GMT+0000");
+assert (/Fri Feb 13 2015 \d{2}:\d{2}:\d{2} GMT\+\d{2}:\d{2}/.test (new Date ("2015-02-13")));
+assert (/Wed Jul 08 2015 \d{2}:\d{2}:\d{2} GMT\+\d{2}:\d{2}/.test (new Date ("2015-07-08T11:29:05.023")));
 
 try
 {
@@ -35,12 +35,12 @@ catch (e)
 }
 
 var date = new Date(0);
-assert (date.toString() === "Thu Jan 01 1970 00:00:00 GMT+0000");
+assert (/Thu Jan 01 1970 \d{2}:\d{2}:\d{2} GMT\+\d{2}:\d{2}/.test (date.toString()));
 assert (date.toUTCString() === "Thu, 01 Jan 1970 00:00:00 GMT");
 assert (date.toISOString() === "1970-01-01T00:00:00.000Z");
 
 date = new Date("2015-08-12T09:40:20.000Z")
-assert (date.toString() === "Wed Aug 12 2015 09:40:20 GMT+0000");
+assert (/Wed Aug 12 2015 \d{2}:\d{2}:\d{2} GMT\+\d{2}:\d{2}/.test (date.toString()));
 assert (date.toUTCString() === "Wed, 12 Aug 2015 09:40:20 GMT");
 assert (date.toISOString() === "2015-08-12T09:40:20.000Z");
 
@@ -147,8 +147,4 @@ assert (Date () == (new Date ()).toString ());
 assert (Date (2015, 1, 1) == (new Date ()).toString ());
 assert (Date (Number.NaN) == Date ());
 
-// Fixme: remove these cases when TZA and DST are supported.
-assert (new Date ("2015-07-08T11:29:05.023-02:00").toString () == "Wed Jul 08 2015 13:29:05 GMT+0000");
-assert (new Date ("2015-07-08T11:29:05.023-02:00").toLocaleString () == "Wed Jul 08 2015 13:29:05 GMT+0000");
-
 assert (new Date ("2015-07-08T11:29:05.023Z").toISOString() == "2015-07-08T11:29:05.023Z");

tests/unit/test-common.h

@@ -24,8 +24,6 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
-#include <sys/time.h>
-
 
 /**
  * Verify that unit tests are built with all debug checks enabled