Performance optimizations

* inline some hot function
 * add 'ecma_copy_value_if_not_object' similer to 'ecma_value_free_if_not_object'
 * remove unnecessary helpers
 * improve 'do_number_bitwise_logic'

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

jerry-core/ecma/base/ecma-helpers-number.c

@@ -230,7 +230,7 @@ ecma_number_get_sign_field (ecma_number_t num) /**< ecma-number */
                   fraction is filled with anything but not all zero bits,
  *         false - otherwise
  */
-bool
+bool __attr_always_inline___
 ecma_number_is_nan (ecma_number_t num) /**< ecma-number */
 {
   bool is_nan = (num != num);
@@ -283,7 +283,7 @@ ecma_number_make_infinity (bool sign) /**< true - for negative Infinity,
  * @return true - if sign bit of ecma-number is set
  *         false - otherwise
  */
-bool
+bool __attr_always_inline___
 ecma_number_is_negative (ecma_number_t num) /**< ecma-number */
 {
   JERRY_ASSERT (!ecma_number_is_nan (num));