Switch unit tests to jerry-libc.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com

tests/unit/test-parser.cpp

@@ -69,6 +69,8 @@ int
 main (int __attr_unused___ argc,
       char __attr_unused___ **argv)
 {
+  TEST_INIT ();
+
   char program[] = "a=1;var a;";
   bool is_ok;